$ git clone -n https://src.fedoraproject.org/rpms/perl-Archive-Any-Create.git /var/lib/mock/f45-build-21774-588/root/chroot_tmpdir/scmroot/perl-Archive-Any-Create
Cloning into '/var/lib/mock/f45-build-21774-588/root/chroot_tmpdir/scmroot/perl-Archive-Any-Create'...
$ git fetch origin b015c0cd6c1b152fb96d14a407496798fd25f9df:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Archive-Any-Create
 * [new ref]         b015c0cd6c1b152fb96d14a407496798fd25f9df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b015c0c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild