Minor bug fix

src/me/blackphreak/CommandHandling/Handlers/EditGradesCommand.java

@@ -226,7 +226,10 @@ public class EditGradesCommand extends AbstractEditCommandHandler {
 			}
 			
 			if (!gradeMap.containsKey(subjID))
+			{
 				System.out.println("Invalid SubjectID. [Does not exist]");
+				subjID = -1;
+			}
 		} while (subjID == -1);
 		
 		var selected = gradeMap.get(subjID);