[1.18] Defterm was only busted on my machine

[zadjii-msft]

Handoff fails, and then we open an empty terminal window (yknow, the kind with 0 tabs).

Repros back to at least 52171d2

Attempted bisect

• ❌ 2e3d5e6 (HEAD -> main, origin/main) Rewrite AtlasEngine to allow arbitrary overhangs
• ❔ 405fb51 Fix AppInitialized latency metric
• ❔ e413a41 Prevent crash when VTParameters::subspan is out of range
• ❔ 4ebc383 A hypothetical fix for hidden windows
• ❔ fea6eed Disable the context menu command inside a zipped folder
• ❔ adbe4a0 Fix missing call to UpdateViewport::UpdateViewport during tearout
• ❔ 7e9f09f A very sensible Pane refactoring
• ❔ 06dc975 Switch to function pointers
• ❔ def3742 Fix focus issue when profile selected from nested menu entry
• ❔ 5ed3c76 Remove IsUwp, RunAsUwp, defaults-universal and all fallout
• ❔ e491141 Remove the window thread from the list of threads before nulling the AppHost
• ❔ 0d1540b Add buttons for selecting commands, output to context menu
• ❔ 2cfd73d Enable WINRT_LEAN_AND_MEAN
• ❔ ee05307 Also do the VisualState dance on the tab item
• ❔ 4788347 Make sure the command palette isn't null
• ❔ 210414e (origin/1.17) Default to XamlRoot when unable to find focused object
• ❔ 2aefb30 Remove a 1px gap under the tabs only visible at >150%
• ❔ ffda8c4 Add automation heading level 1 to fix about dialog
• ❔ 2fd33ba unpackaged: allow building an unpackaged distribution from layout
• ❔ 2c16543 Add a warning when a proportional font is selected
• ❔ 0e86ce5 Add the ability to select a whole command (or its output)
• ❔ 35b9e75 Avoid animations during startup
• ❔ da0a6d4 Lazy load CommandPalette and AboutDialog
• ❔ c2dd614 Fix Peasant::ActivateWindow being called with an all 0 GUID
• ❔ 27bcf7e Add subtext to why Always show tabs is not toggleable in SUI.
• ❔ 2c16e7c Respect the startup info state initially passed to wt via ShellExecute
• ❔ 1825ca1 fix not updating the nav view when add/removing profiles
• ❔ e106c09 Enable ctrl+shift to run terminal elevated from context menu
• ❌ 52171d2 Update to MUX 2.8.3
• ❔ 9b960bc Fix reordering tabs mysteriously shuffling the actual backing tabs
• ❔ 1d354d0 Fix a hang when writing wide glyphs into a 1 column terminal
• ❔ eb725e9 fix: WpfTerminalControl allow Connection set to null
• ❔ 19069e0 A more efficient copy assignment operator for Pane.LayoutSizeNode
• ❔ (👀) 21464fe Manually hide our DesktopWindowXamlSource
• ❌ 789b0b0 Actually use the persisted position with centerOnLaunch:true
• ❔ 72d0566 (dev/migrie/b/mux-2.8.l3) Back off between attempts to start the tests
• ❔ f671f06 Register the GetWindowLayoutRequested handler only when ready
• ❔ 10bdadf Skip generating a profile for rancher-desktop
• ❔ 56d451d Support environment variables in the settings
• ❔ 508adbb Send a KeyUp sequence only once a key has been released
• ❔ b4f6503 Fix re-persisting the new legacy themes
• ❔ 90bbd29 Helix: Decode HTML entities in the test comment fiel
• ❔ ea44375 Check for updates automatically (but don't install)
• ❔ 7fbd3be Only try to hand off to ConhostV1 if building for Windows
• ❔ de09671 wpf: Bump the history length to 9001 instead of 1000
• ❔ c7498a4 PGO: Update the Helix payload to rely on the unpackaged distribution
• ❔ 083fc64 Revert the revert of "Hide the window until we're finished with initialization"
• ❔ 6f8ef58 Add support for running the Terminal without any windows
• ❔ fe66ba5 Add "legacy" themes
• ❔ e73362d Respect the codepage stored in .LNK files in conhost
• ❔ a98a0cf Stop the beef when you hover off a hyperlink
• ❔ 5db8af6 Return success if ReadCharacterInput read >0 characters
• ❔ 5f70920 When unpackaged, isolate the monarch by the install path
• ❌ 6244896 Upgrade clang-format to 15.0.7
• ❔ ecb5e37 Use new row primitives for ResizeTraditional
• ❔ aea0477 Filter out control characters that don't do anything
• ❔ 06526ca Remove our dependency on any CRT--AppX or forwarders
• ❔ 9dfdf2a Introduce til::linear_flat_set
• ❔ 2a839d8 Fix accuracy bugs around float/double/int conversions
• ❔ da995a0 Enable holding ctrl to open the Terminal elevated from Fil
• ❔ 47a17cf Replace statics in headers with inline constants
• ❔ c0f1456 Use DIPs for the window bounds when tearing out
• ❔ 5de1fd9 Introduce til::generational - a struct comparison helper
• ❔ 17cf44f Upgrade to MUX 2.8
• ❔ 06174a9 Format URLs for display when we show the tooltip
• ❔ 0656afc Expose hyperlink attributes in PaintBufferGridLines
• ❔ 0d38d17 Add a simple tool to test rendering functionality
• ❔ 7ddd98d Fix warnings in til for an upcoming version of MSVC
• ❔ 0105807 Add pre-build PowerShell version check
• ❔ e6a3fa8 Add "portable mode", where settings load from the install path
• ❔ bbd4d1b Fix a crash in the rclick context menu
• ❔ 984b03c [SPEC] Add a lightweight spec for Portable Mode
• ❔ 7b0aca4 Enable tearing out tabs to create new windows
• ❔ dd63a05 Add support for an unpackaged distribution of Terminal
• ❔ fc95802 Merge the LineFeed functionality into AdaptDispatch
• ❔ da3a33f Minor cleanups after Remove TranslateUnicodeToOem and all related code #14745
• ❔ 9514c11 Enable dragging tabs between windows
• ❔ 17a5b77 Add support for moving panes and tabs between windows
• ❔ 34aa6aa Update DECSC/DECRC to match the newer DEC terminals
• ❔ c7816fd Add flexible virtualization rules for HKCU\Console\Startup
• ❔ d9efdae Fix font size of HTML clipboard contents
• ❔ c4d0298 Add a second way of detecting whether DefTerm is available
• ❌ f20cd3a Add an efficient text stream write function
• ❔ f5e9e8e Consolidate our MSIX distribution back down to one package

OKAY I think this has got to be something unique to my machine.

[zadjii-msft]

Guys I can't explain it, but I

• closed all terminal instances (dev, preview and stable)
• did a del /s *openconsoleproxy.*
• re-deployed the Terminal

and it's working again. Sorry for the fire drill 🙃

[zadjii-msft]

Or, more correctly, it explodes whenever I'm debugging with VS? Whatever.