$ git clone -n https://src.fedoraproject.org/rpms/xev.git /var/lib/mock/f45-build-38769-728/root/chroot_tmpdir/scmroot/xev
Cloning into '/var/lib/mock/f45-build-38769-728/root/chroot_tmpdir/scmroot/xev'...
$ git fetch origin 4a345b14a0f88d6e499ce4d5720049d8f44740fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xev
 * [new ref]         4a345b14a0f88d6e499ce4d5720049d8f44740fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a345b1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild