Shift–Command–Left/Right Arrow started switching tabs in macOS Mojave Finder, clashes with text movement? I often need to rename longer filenames in Finder. I used to do Shift + Command + ←/→ to select text from cursor to the start/end of the field.

But in macOS Mojave, suddenly this combination started to switch to previous/next Finder tab - so when I use the shortcut, file name editing is cancelled and I get switched to a new tab.

This doesn't happen in macOS High Sierra, and it's described in Apple's support document, Mac keyboard shortcuts as:


Shift–Command–Left Arrow: Select the text between the insertion point and the beginning of the current line.
Shift–Command–Right Arrow: Select the text between the insertion point and the end of the current line.


Is this a bug? Is there a known workaround?
If you set your own shortcut for moving between tabs of a window, the Shift-Command-Arrow combinations will work as before. 

To set your own shortcut: 


Open System Preferences -> Keyboard -> Shortcuts
Select App Shortcuts at the bottom. 
Click the + button to add a shortcut.
Make sure that "All Applications" is selected
Type in the exact names of the commands, on an English system they would be 'Show Previous Tab' and 'Show Next Tab'. Check this in the Window Menu in Finder if you're not sure.
Add your preferred shortcut to switch between tabs in either direction