[Bug 50140] New: "Guild Wars 2 Launcher" over time consumes all available memory

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50140

Bug ID: 50140
           Summary: "Guild Wars 2 Launcher" over time consumes all
                    available memory
           Product: Wine
           Version: unspecified
          Hardware: x86-64
               URL: https://account.arena.net/welcome
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: windowscodecs
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
   Regression SHA1: 1b37ac14a3e4a014c8440e691e9a2bbad9ba6575
      Distribution: ---

Created attachment 68638
  --> https://bugs.winehq.org/attachment.cgi?id=68638
htop-gw2-verify.png

In process of time, the game launcher will sooner or later consume up all
available memory (I am attaching a useless screenshot).
The effect is well manifested with `Gw2-64.exe -verify` (although on the
current Wine you most likely will not be able to download the game client
completely for the same reason).

I have already finished bisecting and have done a few checks.
They led me to the fact that (I do not have programming skills to figure it out
for sure) maybe somewhere in "dlls/windowscodecs/decoder.c" or what it works
with, resources are not being released.
On that day, 8 patches were adopted aimed at working with windowscodecs, but
only the last eighth gives 
such an effect:
cd778e0b7f54cbbb9b7faae0dd6d25f826f54d6b good
1b37ac14a3e4a014c8440e691e9a2bbad9ba6575 bad

Please check it.