Crash in mam

This is from https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=985688 :

cb_chatty_mam_msg_received (pc=<optimized out>, type=<optimized out>,
id=<optimized out>, from=<optimized out>,
    to=<optimized out>, msg=<optimized out>) at
    ../src/xeps/chatty-xep-0313.c:800
800     ../src/xeps/chatty-xep-0313.c: No such file or directory.
(gdb) bt
#0  cb_chatty_mam_msg_received (pc=<optimized out>, type=<optimized
out>, id=<optimized out>, from=<optimized out>,
    to=<optimized out>, msg=<optimized out>) at
    ../src/xeps/chatty-xep-0313.c:800
#1  0x00007ffff71351b4 in
purple_marshal_BOOLEAN__POINTER_POINTER_POINTER_POINTER_POINTER_POINTER
(
    cb=<optimized out>, args=<optimized out>, data=<optimized out>,
    return_val=0x7fffffffdb28)
    at ././libpurple/signals.c:1019
#2  0x00007ffff7133e05 in purple_signal_emit_vargs_return_1
(instance=<optimized out>, signal=0x7fffffffdb28 "",
    signal@entry=0x7ffff70818c2 "jabber-receiving-message",
    args=args@entry=0x7fffffffdb80)
    at ././libpurple/signals.c:563
#3  0x00007ffff7133f6e in purple_signal_emit_return_1
(instance=<optimized out>,
    signal=signal@entry=0x7ffff70818c2 "jabber-receiving-message") at
    ././libpurple/signals.c:506
#4  0x00007ffff706f1f4 in jabber_message_parse (js=0x555555c97ee0,
packet=0x5555556a34b0)
    at ././libpurple/protocols/jabber/message.c:530
#5  0x00007ffff7071794 in jabber_parser_element_end_libxml
(user_data=0x555555c97ee0, element_name=<optimized out>,
    prefix=<optimized out>, namespace=<optimized out>) at
    ././libpurple/protocols/jabber/parser.c:169
#6  0x00007ffff59174d7 in xmlParseEndTag2 (ctxt=0x555555d8e3d0,
prefix=0x0, URI=0x555555d8fe14 "jabber:client",
    nsNr=0, tlen=0, line=<optimized out>) at ../../parser.c:9690
#7  0x00007ffff5921ed9 in xmlParseTryOrFinish
(ctxt=ctxt@entry=0x555555d8e3d0, terminate=terminate@entry=0)
    at ../../parser.c:11568
#8  0x00007ffff5923138 in xmlParseChunk__internal_alias
(ctxt=0x555555d8e3d0,
    chunk=0x7ffff7098b00 <buf> "rplebfa0ca76'><forwarded
    xmlns='urn:xmpp:forward:0'><delay xmlns='urn:xmpp:delay'
    stamp='2021-03-20T17:49:36Z'/><message id='U02X4-93678'
    to='USERNAME@EXAMPLE.COM/SOMECLIENT from='MUC@EXAMPLE.ORG"...,
    size=<optimized out>, terminate=terminate@entry=0) at
    ../../parser.c:12281
#9  0x00007ffff7071c5e in jabber_parser_process (js=0x555555c97ee0,
buf=<optimized out>, len=<optimized out>)
    at ././libpurple/protocols/jabber/parser.c:279
#10 0x00007ffff7060a3a in jabber_recv_cb_ssl (data=0x555555c979f0,
gsc=0x555555d39190, cond=<optimized out>)
    at ././libpurple/protocols/jabber/jabber.c:694
#11 0x000055555556f502 in purple_glib_io_invoke (source=<optimized out>,
condition=<optimized out>,
    data=0x555555699940) at ../src/chatty-manager.c:299
#12 0x00007ffff7c9bd6f in g_main_dispatch (context=0x5555556375d0) at
../../../glib/gmain.c:3325
#13 g_main_context_dispatch (context=0x5555556375d0) at
../../../glib/gmain.c:4043
--Type <RET> for more, q to quit, c to continue without paging--
#14 0x00007ffff7c9c118 in g_main_context_iterate
(context=context@entry=0x5555556375d0, block=block@entry=1,
    dispatch=dispatch@entry=1, self=<optimized out>) at
    ../../../glib/gmain.c:4119
#15 0x00007ffff7c9c1cf in g_main_context_iteration
(context=context@entry=0x5555556375d0, may_block=may_block@entry=1)
    at ../../../glib/gmain.c:4184
#16 0x00007ffff7eb2545 in g_application_run (application=0x555555636100,
argc=-7756, argc@entry=1,
    argv=argv@entry=0x7fffffffe318) at ../../../gio/gapplication.c:2559
#17 0x000055555556c17f in main (argc=1, argv=0x7fffffffe318) at
../src/main.c:28

The Debian report has some more details. @ruff maybe you have an immediate idea?