X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Fpreferencesthread.C;h=4c9561b04e9014bba5f4e3d5763dfddc119750e6;hb=82931d63c508e5953e9d5a19be76b60ec0e146c5;hp=e4f050be1d2ff4b7919ca8106e5a0eeb0a32e9f1;hpb=83c58d6d78f6bf0d1d1fd4cfba8654906fe6ec29;p=goodguy%2Fcinelerra.git

diff --git a/cinelerra-5.1/cinelerra/preferencesthread.C b/cinelerra-5.1/cinelerra/preferencesthread.C
index e4f050be..4c9561b0 100644
--- a/cinelerra-5.1/cinelerra/preferencesthread.C
+++ b/cinelerra-5.1/cinelerra/preferencesthread.C
@@ -251,6 +251,9 @@ int PreferencesThread::apply_settings()
 		mwindow->restart_status = -1;
 	}
 
+	if( mwindow->preferences->perpetual_session && !preferences->perpetual_session )
+		mwindow->remove_undo_data();
+
 	mwindow->edl->copy_session(edl, 1);
 	mwindow->update_preferences(preferences);