I was running code in lua-app that exposed a bug in roact so that things were getting unmounted twice, which would lead to a crash.
Change so it gracefully handles being unmounted twice.
Coverage increased (+0.004%) to 94.787% when pulling 524cfae389aaccbc2f80851008405fbbd3dc86b1 on dougbankspersonal:nojira/gracefilly_handle_double_unmount into c2d515d926d8f0df02afcf9af64625860ed7f93d on Roblox:master.
I was running code in lua-app that exposed a bug in roact so that things were getting unmounted twice, which would lead to a crash. Change so it gracefully handles being unmounted twice.