[Linux] Cursor is not focused on new file window, but remains on previously focused window

Steps to reproduce:

1. Click on the content of any file in the editor, so that the cursor is focused there. 
2. Click File > New File
3. Start typing.

Expected: Cursor's focus is shifted to new file windows. 

Actual: The cursor in new file windows seems to be active, but the entered text appears in the place when the cursor was previously focused. It looks like we have two active cursors on the screen. See the attache video. 

Reproducibility:  100%