$ git clone -n https://src.fedoraproject.org/rpms/perl-Alien-Build-Plugin-Download-GitLab.git /var/lib/mock/f45-build-21623-587/root/chroot_tmpdir/scmroot/perl-Alien-Build-Plugin-Download-GitLab
Cloning into '/var/lib/mock/f45-build-21623-587/root/chroot_tmpdir/scmroot/perl-Alien-Build-Plugin-Download-GitLab'...
$ git fetch origin 24100bf401d4122271a33d4989d3adc80f7aac03:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Alien-Build-Plugin-Download-GitLab
 * [new ref]         24100bf401d4122271a33d4989d3adc80f7aac03 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 24100bf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild