fix(pi-fff): make FffEditor safe under composability subclassing#436

dmtrKovalenko merged 1 commit intodmtrKovalenko:maindmtrKovalenko/fff:mainfrom

kylesnowschwartz:fix/pi-fff-mention-autocomplete-subclass-safetykylesnowschwartz/fff:fix/pi-fff-mention-autocomplete-subclass-safetyCopy head branch name to clipboard