$ git clone -n https://src.fedoraproject.org/rpms/perl-MasonX-Interp-WithCallbacks.git /var/lib/mock/f45-build-24665-605/root/chroot_tmpdir/scmroot/perl-MasonX-Interp-WithCallbacks
Cloning into '/var/lib/mock/f45-build-24665-605/root/chroot_tmpdir/scmroot/perl-MasonX-Interp-WithCallbacks'...
$ git fetch origin 1b0e87e3e6dcabfc8402fe958fbdb782069e45dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MasonX-Interp-WithCallbacks
 * [new ref]         1b0e87e3e6dcabfc8402fe958fbdb782069e45dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b0e87e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild