Add feedback message to error

Author: frank-cywong

src/graphql/resolvers/Mutation/alterMeeting.js

@@ -182,5 +182,12 @@ export default async (
 		);
 	}
 
+	// TEMPORARY CODE TO PREVENT OVERBOOKING BUG
+	if(start != meeting.start || end != meeting.end){
+		throw new UserInputError(
+			"You may not edit start or end times of a meeting to prevent a bug involving room overbooking. Any other edits have been saved, but your start & end times are as before."
+		);
+	}
+	// END TEMPORARY CODE
 	return meeting;
 };