$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Properties.git /var/lib/mock/f45-build-22894-594/root/chroot_tmpdir/scmroot/perl-Data-Properties
Cloning into '/var/lib/mock/f45-build-22894-594/root/chroot_tmpdir/scmroot/perl-Data-Properties'...
$ git fetch origin af6d0e26087d593abed462c5dae05f220283f8b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Data-Properties
 * [new ref]         af6d0e26087d593abed462c5dae05f220283f8b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af6d0e2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild