[gnome-commander] Clear error if it was of type G_IO_ERROR_NOT_EMPTY

[Uwe Scholz <uwescholz src gnome org>]

commit 55b3182308e865f8b6a9c99c97025773fd8327a2
Author: Uwe Scholz <u scholz83 gmx de>
Date:   Sun Nov 28 22:23:32 2021 +0100

    Clear error if it was of type G_IO_ERROR_NOT_EMPTY

 src/dialogs/gnome-cmd-delete-dialog.cc | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/dialogs/gnome-cmd-delete-dialog.cc b/src/dialogs/gnome-cmd-delete-dialog.cc
index ab8195fc..6e4178bd 100644
--- a/src/dialogs/gnome-cmd-delete-dialog.cc
+++ b/src/dialogs/gnome-cmd-delete-dialog.cc
@@ -209,6 +209,8 @@ static gboolean perform_delete_operation_r(DeleteData *deleteData, GList *gnomeC
 
         if (tmpError && g_error_matches (tmpError, G_IO_ERROR, G_IO_ERROR_NOT_EMPTY))
         {
+            g_error_free(tmpError);
+            tmpError = nullptr;
             auto gnomeCmdDir = GNOME_CMD_DIR (gnomeCmdFile);
             gnome_cmd_dir_list_files (gnomeCmdDir, FALSE);