$ git clone -n https://src.fedoraproject.org/rpms/perl-Spoon.git /var/lib/mock/f45-build-26210-616/root/chroot_tmpdir/scmroot/perl-Spoon
Cloning into '/var/lib/mock/f45-build-26210-616/root/chroot_tmpdir/scmroot/perl-Spoon'...
$ git fetch origin 5a31fe3e4af06378b8ae023b43e221c821700384:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Spoon
 * [new ref]         5a31fe3e4af06378b8ae023b43e221c821700384 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a31fe3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild