$ git clone -n https://src.fedoraproject.org/rpms/perl-DateTime-Format-MySQL.git /var/lib/mock/f45-build-23002-595/root/chroot_tmpdir/scmroot/perl-DateTime-Format-MySQL
Cloning into '/var/lib/mock/f45-build-23002-595/root/chroot_tmpdir/scmroot/perl-DateTime-Format-MySQL'...
$ git fetch origin 968614b2ef01b84c56556b28acef04999c89034d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DateTime-Format-MySQL
 * [new ref]         968614b2ef01b84c56556b28acef04999c89034d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 968614b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild