$ git clone -n https://src.fedoraproject.org/rpms/libaribcaption.git /var/lib/mock/f42-build-870026-176975/root/chroot_tmpdir/scmroot/libaribcaption
Cloning into '/var/lib/mock/f42-build-870026-176975/root/chroot_tmpdir/scmroot/libaribcaption'...
$ git fetch origin 981c54d15918f5e45b058af792c3fca1ad0a1492:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libaribcaption
 * [new ref]         981c54d15918f5e45b058af792c3fca1ad0a1492 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 981c54d Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild