Fakematch JASTrack::TList::seqMain (#2940)

* Fakematch JASTrack::TList::seqMain

* Add debug ifdef

src/JSystem/JAudio2/JASTrack.cpp

@@ -728,8 +728,8 @@ void JASTrack::TList::append(JASTrack* i_track) {
     Push_back(i_track);
 }
 
-// NONMATCHING - missing load instruction (matches debug, equivalent)
 void JASTrack::TList::seqMain() {
+#if DEBUG
     iterator it, it2;
     for (it = begin(); it != end(); it = it2) {
         it2 = it;
@@ -742,6 +742,25 @@ void JASTrack::TList::seqMain() {
             }
         }
     }
+#else
+    iterator it;
+    for (it = begin(); it != end();) {
+        // Fakematch: Debug shows that it2 should be declared outside the loop and then this line
+        // should use operator=, but that results in a missing load instruction for retail, so we
+        // use the copy constructor instead of the assignment operator, which fixes it for some
+        // reason. Might be related to the fakematch in the assignment operator?
+        iterator it2 = it;
+        ++it2;
+        int seqMainRes = it->seqMain();
+        if (seqMainRes < 0) {
+            Remove(&*it);
+            if (it->mFlags.autoDelete) {
+                delete &*it;
+            }
+        }
+        it = it2;
+    }
+#endif
 }
 
 JASTrack::TChannelMgr::TChannelMgr(JASTrack* i_track) : mSoundParams(NULL), mTrack(i_track) {