$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-Callsite.git /var/lib/mock/f40-build-2016753-46230/root/chroot_tmpdir/scmroot/perl-Devel-Callsite
Cloning into '/var/lib/mock/f40-build-2016753-46230/root/chroot_tmpdir/scmroot/perl-Devel-Callsite'...
$ git fetch origin ace21176aae10004f80d8bc79bfe42164bedecb5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-Callsite
 * [new ref]         ace21176aae10004f80d8bc79bfe42164bedecb5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ace2117 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild