From aeeda76c9252ab03c1b91c879e6d890801b0ba2e Mon Sep 17 00:00:00 2001
From: fiaxh <git@lightrise.org>
Date: Thu, 8 Apr 2021 12:19:11 +0200
Subject: [PATCH] StreamManagement: Fix HashMap potentially being altered while
 being itterated

---
 xmpp-vala/src/module/xep/0198_stream_management.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xmpp-vala/src/module/xep/0198_stream_management.vala b/xmpp-vala/src/module/xep/0198_stream_management.vala
index b9185808..e053f3fb 100644
--- a/xmpp-vala/src/module/xep/0198_stream_management.vala
+++ b/xmpp-vala/src/module/xep/0198_stream_management.vala
@@ -179,11 +179,11 @@ public class Module : XmppStreamNegotiationModule, WriteNodeFunc {
         var remove_nrs = new ArrayList<int>();
         foreach (int nr in in_flight_stanzas.keys) {
             if (nr <= h) {
-                in_flight_stanzas[nr].promise.set_value(null);
                 remove_nrs.add(nr);
             }
         }
         foreach (int nr in remove_nrs) {
+            in_flight_stanzas[nr].promise.set_value(null);
             in_flight_stanzas.unset(nr);
         }
     }