This patch removes the ugly hack of using Arabic presentation forms for various Lam-Alef ligatures, which is the source of many troubles. Until #8195 is fixed, the affected keys are now assigned VoidSymbol.
Created attachment 13457 [details] [review]
Remove Arabic presentation forms
Created attachment 17394 [details] [review]
Patch to restore the removed code points
Reopening, since #16426 makes it possible to have one key to multiple code points. The new patch reverses the previous one.
opened a new bug 18833 for this