fix unregister hotkey call not finding single key press

Author: jjw24

ChefKeys/ChefKeysManager.cs

@@ -249,13 +249,12 @@ public static void RegisterHotkey(string hotkeys, string previousHotkey, Action<
 
         public static void UnregisterHotkey(string hotkey)
         {
-            if (!registeredHotkeys.TryGetValue(ToKeyCode(SplitHotkeyReversed(hotkey).First()), out var existingKeyRecord))
-                return;
+            var existingKeyRecord = GetRegisteredKeyRecord(hotkey);
 
-            if (!existingKeyRecord.KeyComboRecords.Exists(x => x.comboRaw == hotkey))
+            if (existingKeyRecord is null)
                 return;
 
-            if (!hotkey.Contains('+'))
+            if (!IsComboString(hotkey))
             {
                 existingKeyRecord.action -= existingKeyRecord.action;
                 existingKeyRecord.isSingleKeyRegistered = false;
@@ -274,12 +273,24 @@ public static void UnregisterHotkey(string hotkey)
                 registeredHotkeys.Remove(existingKeyRecord.vk_code);
         }
 
+        internal static KeyRecord GetRegisteredKeyRecord(string hotkey)
+        {
+            if (!registeredHotkeys.TryGetValue(ToKeyCode(SplitHotkeyReversed(hotkey).First()), out var existingKeyRecord))
+                return null;
+
+            if (IsComboString(hotkey) && !existingKeyRecord.KeyComboRecords.Exists(x => x.comboRaw == hotkey))
+                return null;
+
+            return existingKeyRecord;
+        }
+
         private static int ToKeyCode(string key)
         {
             return KeyInterop.VirtualKeyFromKey((Key)Enum.Parse(typeof(Key), key));
         }
 
-        private static IEnumerable<string> SplitHotkeyReversed(string hotkeys) => hotkeys.Split("+", StringSplitOptions.RemoveEmptyEntries).Reverse();
+        private static IEnumerable<string> SplitHotkeyReversed(string hotkeys)
+            => hotkeys.Split("+", StringSplitOptions.RemoveEmptyEntries).Reverse();
 
         private static string ConvertIncorrectKeyString(string hotkey)
         {
@@ -332,6 +343,8 @@ private static string ConvertIncorrectKeyString(string hotkey)
             return newHotkey;
         }
 
+        private static bool IsComboString(string hotkey) => hotkey.Contains('+');
+
         #endregion key management
     }
 }