updated for version 7.3.536 Problem: When spell checking the German sharp s is not seen as a word character. (Aexl Bender) Solution: In utf_islower() return true for the sharp s. Note: also need updated spell file for this to take effect.

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