$ git clone -n https://src.fedoraproject.org/rpms/perl-Time-Interval.git /var/lib/mock/f45-build-27183-621/root/chroot_tmpdir/scmroot/perl-Time-Interval
Cloning into '/var/lib/mock/f45-build-27183-621/root/chroot_tmpdir/scmroot/perl-Time-Interval'...
$ git fetch origin 991441c5389609b7a98714b5c6e459d9947e6bf8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Time-Interval
 * [new ref]         991441c5389609b7a98714b5c6e459d9947e6bf8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 991441c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild