Check custom reactions in channels better.

Telegram/SourceFiles/data/data_message_reactions.cpp

@@ -181,6 +181,7 @@ PossibleItemReactionsRef LookupPossibleReactions(
 			}
 			return true;
 		});
+		if (allowed.type == AllowedReactionsType::Some) {
 			for (const auto &id : allowed.some) {
 				if (!added.contains(id)) {
 					if (const auto temp = reactions->lookupTemporary(id)) {
@@ -188,6 +189,7 @@ PossibleItemReactionsRef LookupPossibleReactions(
 					}
 				}
 			}
+		}
 		result.customAllowed = (allowed.type == AllowedReactionsType::All)
 			&& premiumPossible;
 	}