Fix erasing of premove highlights XB
authorH.G.Muller <hgm@hgm-xboard.(none)>
Tue, 29 Mar 2016 14:30:50 +0000 (16:30 +0200)
committerH.G.Muller <hgm@hgm-xboard.(none)>
Tue, 29 Mar 2016 14:51:35 +0000 (16:51 +0200)
The to-square premove highlight was not marked for erasure (but
the from-square was marked twice if the to-square higlight  changed),
leading to accumulation of highlighted squares during PV walking.


No differences found