From 45398fb65c14f451b8da7f0ecd276becc1d294b5 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Tue, 11 Oct 2022 20:40:25 +0200
Subject: [PATCH] Fix switch custom -> generic plugin UI

See also e635571f2f and bd898a68
---
 gtk2_ardour/processor_box.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gtk2_ardour/processor_box.cc b/gtk2_ardour/processor_box.cc
index f938961c96..ca930d3c77 100644
--- a/gtk2_ardour/processor_box.cc
+++ b/gtk2_ardour/processor_box.cc
@@ -4796,11 +4796,12 @@ ProcessorWindowProxy::get (bool create)
 void
 ProcessorWindowProxy::show_the_right_window (bool show_not_toggle)
 {
-	_unmap_connection.disconnect ();
 	if (_window && (is_custom != want_custom)) {
 		/* drop existing window - wrong type */
 		set_state_mask (Gtkmm2ext::WindowProxy::StateMask (state_mask () & ~WindowProxy::Size));
+		_unmap_connection.block ();
 		drop_window ();
+		_unmap_connection.unblock ();
 	}
 	if (_window && fully_visible () && show_not_toggle) {
 		return;