$ git clone -n https://src.fedoraproject.org/rpms/mediawiki-wikicalendar.git /var/lib/mock/f40-build-2611031-63886/root/chroot_tmpdir/scmroot/mediawiki-wikicalendar
Cloning into '/var/lib/mock/f40-build-2611031-63886/root/chroot_tmpdir/scmroot/mediawiki-wikicalendar'...
$ git fetch origin 5a781a50813a43170c4c12522a7637b820a832ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mediawiki-wikicalendar
 * [new ref]         5a781a50813a43170c4c12522a7637b820a832ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a781a5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild