-
Reduces contention on the mutex in KisCanvasUpdatesCompressor by not getting updates one by one but in a batch (without this, there will be a constant list of 20 to 30 items in the list during drawing). This is a resurrected patch from Bernhard Liebl, which was accidentally forgotten in 2017 :( Differential Revision: https://phabricator.kde.org/D8022
b56a0362