[GNC] Annoying Register Issue

[Les]

Hi All:

I recently upgraded to GC 4.2 via Flathub (on Linux Mint 19.2. It seems 
that if you enter an incorrect entry and attempt to backspace or delete 
an entry in the register, it will not allow this action.  I am able to 
highlight the entry and then type over it.

This is not a big deal but just annoying, and thought it worthwhile to post.

Regards,

Les