Matrix reconnect failed with "Not enough memory"

[wavexx]

System went offline for a few hours while weechat+weechat-matrix was loaded. When returning online, I noticed matrix was still disconnected.

Looking at the server buffer I see this:

19:39:45 matrix_com  -- | matrix: Connecting to host:443 (SSL)...
19:39:45 matrix_com =!= | matrix: Not enough memory
19:39:45 matrix_com  -- | matrix: disconnected from server

Sadly, weechat crashed a few commands later with a SIGSEGV before I could try to debug it. It's the first time I noticed this happening.

[poljar]

We used to have a leak that happens during reconnects, might be back or the fix might have been incomplete.