Writing flow: Column: Horizontal multi-selection starting from text fails

[ellatrix]

Describe the bug
Column specific issue. Horizontal multi-selection fails.
To reproduce
Steps to reproduce the behavior:

1. Create a columns block
2. Add paragraph in both columns
3. Try to select from paragraph to paragraph
4. Observe absence of multi selection

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Editor version (please complete the following information):

• WordPress version: 5.5.1.
• Does the website has Gutenberg plugin installed, or is it using the block editor that comes by default? Gutenberg plugin
• If the Gutenberg plugin is installed, which version is it? Master

Desktop (please complete the following information):

• OS: macOS
• Browser Chrome & Firefox
• Version latest

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context

• To report a security issue, please visit the WordPress HackerOne program: https://hackerone.com/wordpress.

[Thelmachido]

I can reproduce this on Gutenberg 13.7.3 & WordPress 6.0.1

You can't select text from both paragraphs at the same time as shown below:

Screen.Recording.2022-08-03.at.11.10.40.mov

[youknowriad]

I can't reproduce this anymore. The multi-selection triggers properly for me. There's no partial multi-selection though but I think that's ok.