$ git clone -n https://src.fedoraproject.org/rpms/perl-ExtUtils-TBone.git /var/lib/mock/f45-build-23446-597/root/chroot_tmpdir/scmroot/perl-ExtUtils-TBone
Cloning into '/var/lib/mock/f45-build-23446-597/root/chroot_tmpdir/scmroot/perl-ExtUtils-TBone'...
$ git fetch origin 968ab91c113814aa7f4d0fb52bfbef880edd2bab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-ExtUtils-TBone
 * [new ref]         968ab91c113814aa7f4d0fb52bfbef880edd2bab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 968ab91 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild