updated for version 7.3.854 Problem: After using backspace in insert mode completion, CTRL-N and CTRL-P do not highlight the right entry. (Olivier Teuliere) Solution: Set the current item to the shown item after using backspace.

Results:
tab page 2
this is tab page 3
this is tab page 1
this is tab page 4
gettabvar: pass
settabvar: pass
tab drop 1: pass
tab drop 2: pass
tab drop 3: pass
1
6
4
8
10
1
10
4
6
E474 caught.