$ git clone -n https://src.fedoraproject.org/rpms/perl-Hijk.git /var/lib/mock/f39-build-1438207-32190/root/chroot_tmpdir/scmroot/perl-Hijk
Cloning into '/var/lib/mock/f39-build-1438207-32190/root/chroot_tmpdir/scmroot/perl-Hijk'...
$ git fetch origin af2596efcafcbce9f034ae496d0ccbf3e940f5e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Hijk
 * [new ref]         af2596efcafcbce9f034ae496d0ccbf3e940f5e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af2596e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild