gnome-shell 3.32.1 memory leak

Similar to issue old issues #64 (closed) and #653 (closed)

So I've found out that letting my computer on overnight the memory consumption was slowly growing with gnome-shell, at first I wasn't much worried about this because ALT+F2 with command "r" is an easy workaround, but when I found out that a few users do complain about this for some time it pushed me for further investigation.

It seems that this was corrected on mutter request !267 but, could this bug be back?

I'm using Ubuntu 19.04 with gnome 3.32.1

Valgrind dump vgdump

Let me know if anything else is needed.