$ git clone -n https://src.fedoraproject.org/rpms/perl-IPC-Shareable.git /var/lib/mock/f45-build-24212-602/root/chroot_tmpdir/scmroot/perl-IPC-Shareable
Cloning into '/var/lib/mock/f45-build-24212-602/root/chroot_tmpdir/scmroot/perl-IPC-Shareable'...
$ git fetch origin 31c064607af3fa81d312e3d2989df3da812ed6c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-IPC-Shareable
 * [new ref]         31c064607af3fa81d312e3d2989df3da812ed6c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31c0646 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild