Can not print without a spool selected in 1.4.0

[The-EG]

With the new version, 1.4.0, I can no longer start a print with no spool selected.

Steps to reproduce:

1. Un-select a spool in the spool manager pane:
   
2. Select a file and click 'Print'

The UI doesn't respond in anyway, but this error does occur in the javascript console:

Uncaught TypeError: result is undefined
    confirmSpoolSelectionBeforeStartPrint http://10.0.0.102/ender-3-v2/static/webassets/packed_plugins.js?87fa31a1:4470
    allowedToPrint http://10.0.0.102/ender-3-v2/static/webassets/packed_plugins.js?87fa31a1:4998
    c http://10.0.0.102/ender-3-v2/static/webassets/packed_libs.js?86afb3b9:13
    fireWith http://10.0.0.102/ender-3-v2/static/webassets/packed_libs.js?86afb3b9:13
    l http://10.0.0.102/ender-3-v2/static/webassets/packed_libs.js?86afb3b9:13
    o http://10.0.0.102/ender-3-v2/static/webassets/packed_libs.js?86afb3b9:13
    sentryWrapped http://10.0.0.102/ender-3-v2/static/webassets/packed_core.js?7846f86e:634

Prior versions showed a confirmation dialog, and started the print if the appropriate response was chosen.

OctoPrint 1.6.1, FireFox 88.0.1

[OllisGit]

Hi @The-EG,

issue should be solved in latest release 1.4.3.

Please test and give feedback.

Thx, in advance
Olli

[The-EG]

Thanks! I will test after my current print is finished.

[The-EG]

Confirmed fix in 1.4.3. Thanks!