[Bug 1851919] New: Pango 1.45 crashes pidgin with any link click

https://bugzilla.redhat.com/show_bug.cgi?id=1851919

            Bug ID: 1851919
           Summary: Pango 1.45 crashes pidgin with any link click
           Product: Fedora
           Version: rawhide
            Status: NEW
         Component: pango
          Assignee: pwu(a)redhat.com
          Reporter: zkabelac(a)redhat.com
        QA Contact: extras-qa(a)fedoraproject.org
                CC: caillon+fedoraproject(a)gmail.com,
                    fonts-bugs(a)lists.fedoraproject.org,
                    gnome-sig(a)lists.fedoraproject.org,
                    i18n-bugs(a)lists.fedoraproject.org,
                    john.j5live(a)gmail.com, mclasen(a)redhat.com,
                    pwu(a)redhat.com, rhughes(a)redhat.com,
                    rstrode(a)redhat.com, sandmann(a)redhat.com,
                    tagoh(a)redhat.com
  Target Milestone: ---
    Classification: Fedora



Description of problem:

I've noticed instant crash of a pidgin - with this new pango 1.45 package.
I've downgraded to version  pango-1.44.7-3.fc33  and pidgin is 'usable'
again (aka I can click on URL without getting instant core dump).

This is backtrace I'm getting on a crash:
(pidgin 2.13.0-20)

#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
--Type <RET> for more, q to quit, c to continue without paging--
49        return ret;
[Current thread is 1 (Thread 0x7f2b86c61cc0 (LWP 100183))]
(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
#1  0x00007f2b883a78a4 in __GI_abort () at abort.c:79
#2  0x00007f2b886d5b6c in g_assertion_message
    (domain=<optimized out>, file=0x7f2b88b7e19b
"../pango/pango-context.c",
line=<optimized out>, func=<optimized out>, message=<optimized out>) at
../glib/gtestutils.c:2930
#3  0x00007f2b8873408f in g_assertion_message_expr
    (domain=0x7f2b88b79e0d "Pango", file=0x7f2b88b7e19b
"../pango/pango-context.c", line=1435, func=0x7f2b88b7e3d0
"itemize_state_process_run", expr=<optimized out>) at
../glib/gtestutils.c:2956
#4  0x00007f2b88b603d6 in itemize_state_process_run () at
/lib64/libpango-1.0.so.0
#5  0x00007f2b88b61218 in pango_itemize_with_base_dir () at
/lib64/libpango-1.0.so.0
#6  0x00007f2b88b6a695 in pango_layout_check_lines.part () at
/lib64/libpango-1.0.so.0
#7  0x00007f2b88b6c539 in pango_layout_get_extents_internal () at
/lib64/libpango-1.0.so.0
#8  0x00007f2b88b6cac1 in pango_layout_get_pixel_size () at
/lib64/libpango-1.0.so.0
#9  0x000056100c9047f1 in gtk_imhtml_tip ()
#10 0x00007f2b8870ba51 in g_timeout_dispatch
    (source=source@entry=0x56100ec326c0, callback=0x56100c9045b0
<gtk_imhtml_tip>, user_data=0x56100d93c2b0)
    at ../glib/gmain.c:4800
#11 0x00007f2b8870aeaf in g_main_dispatch (context=0x56100d287540) at
../glib/gmain.c:3309
#12 g_main_context_dispatch (context=0x56100d287540) at ../glib/gmain.c:3974
#13 0x00007f2b8870b238 in g_main_context_iterate
    (context=0x56100d287540, block=block@entry=1, dispatch=dispatch@entry=1,
self=<optimized out>)
    at ../glib/gmain.c:4047
#14 0x00007f2b8870b553 in g_main_loop_run (loop=0x56100ea147e0) at
../glib/gmain.c:4241
#15 0x00007f2b88f37ba2 in gtk_main () at /lib64/libgtk-x11-2.0.so.0
#16 0x000056100c8bdb4c in main ()


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