Pidgin crashing with Pango error on URL mouseover in conversation history

[Dominique Cyprès]

I have been using Pidgin for IRC chats on NixOS-unstable. As expected, the conversation history displays URLs as clickable links. Mousing over these clickable links crashes Pidgin, in both Sway and the XFCE desktop environment. The console output when this crash occurs is as follows:

**
Pango:ERROR:../pango/pango-context.c:1435:itemize_state_process_run: assertion failed: (state->run_end != state->run_start)
Bail out! Pango:ERROR:../pango/pango-context.c:1435:itemize_state_process_run: assertion failed: (state->run_end != state->run_start)
Aborted (core dumped)

The most recent version of Pidgin currently available from official NixOS channels is 2.13.0, but I have also compiled Pidgin 2.14.1 and replicated the bug with that version.

Some potentially relevant version numbers:
Pidgin: 2.14.1
GTK+: 2.24.32
Pango: 1.45.3