$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-Stomp.git /var/lib/mock/f45-build-25430-611/root/chroot_tmpdir/scmroot/perl-Net-Stomp
Cloning into '/var/lib/mock/f45-build-25430-611/root/chroot_tmpdir/scmroot/perl-Net-Stomp'...
$ git fetch origin ddce45db8c99bc60dac44b2fdc4bed08c473e789:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-Stomp
 * [new ref]         ddce45db8c99bc60dac44b2fdc4bed08c473e789 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ddce45d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild