Revert "Changed to isPlayingOrWillChangePlaymode instead of isPlaying"

This reverts commit d2d5691178393194473deb1ed862ca9056bcb7a2.

UOP1_Project/Assets/Scripts/StateMachine/Editor/Utilities/InitOnlyAttributeDrawer.cs

 	[CustomPropertyDrawer(typeof(InitOnlyAttribute))]
 	public class InitOnlyAttributeDrawer : PropertyDrawer
 	{
-		private static readonly string _text = "Changes to this parameter during play mode will only take effect on new state machine instances, or the next time you enter play mode.";
+		private static readonly string _text = "Changes to this parameter will only take effect on new state machine instances, or the next time you enter play mode.";
-			if (EditorApplication.isPlayingOrWillChangePlaymode)
+			if (EditorApplication.isPlaying)
 			{
 				position.height = _style.CalcHeight(new GUIContent(_text), EditorGUIUtility.currentViewWidth);
 				EditorGUI.HelpBox(position, _text, MessageType.Info);
 		{
 			float height = EditorGUI.GetPropertyHeight(property, label);
 
-			if (EditorApplication.isPlayingOrWillChangePlaymode)
+			if (EditorApplication.isPlaying)
 			{
 				height += _style.CalcHeight(new GUIContent(_text), EditorGUIUtility.currentViewWidth)
 					+ EditorGUIUtility.standardVerticalSpacing * 4;