Unable to highlight text during "insert mode" in conjunction with insertCursorAtEndOfEachLineSelected

[ralphie02]

Describe the bug
Unable to highlight text during "insert mode" after using editor.action.insertCursorAtEndOfEachLineSelected

To Reproduce
Steps to reproduce the behavior:

1. Open/create a file with multi-line text
2. On normal mode, highlight multiple lines
3. Press shift + a to enable insertCursorAtEndOfEachLineSelected with insert mode
4. Proceed to highlight text using shift + left arrow key.

Expected behavior
Text that the cursors pass through gets highlighted but

Environment (please complete the following information):

• Extension (VsCodeVim) version: v1.13.0
• VSCode version: 1.42.1
• OS: Windows_NT x64 10.0.18363

Additional context

Note that this only happens when vim is enabled, tried to disable then proceeded to use insertCursorAtEndOfEachLineSelected normally without issues.

[J-Fields]

Duplicate of #2438