&vendorShortName; is escaped in ar breaking the referencing of this entity
We have <!ENTITY project.tpoLink "&vendorShortName؛"> in ar's aboutDialog.dtd. Note for comparison, just one line above in that file <!ENTITY project.start "طوّر &brandShortName;">.
The latter is correct as the & and ; are making sure brandShortName as it is translated elsewhere gets included. But that fails if one starts to escape those characters (e.g. by replacing & with &).
Thanks to Thorin for reporting this issue.
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