MAINT-999 FIXED Clear message when clicking Save button.

indra/newview/llpreviewscript.cpp

@@ -2401,8 +2401,12 @@ void LLLiveLSLEditor::onLoad(void* userdata)
 void LLLiveLSLEditor::onSave(void* userdata, BOOL close_after_save)
 {
 	LLLiveLSLEditor* self = (LLLiveLSLEditor*)userdata;
-	self->mCloseAfterSave = close_after_save;
-	self->saveIfNeeded();
+	if(self)
+	{
+		self->mCloseAfterSave = close_after_save;
+		self->mScriptEd->mErrorList->setCommentText("");
+		self->saveIfNeeded();
+	}
 }