$ git clone -n https://src.fedoraproject.org/rpms/gotcha.git /var/lib/mock/f45-build-12918-444/root/chroot_tmpdir/scmroot/gotcha
Cloning into '/var/lib/mock/f45-build-12918-444/root/chroot_tmpdir/scmroot/gotcha'...
$ git fetch origin 98f3952c80f6eb876df54ddebb11cb2c668c4c7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gotcha
 * [new ref]         98f3952c80f6eb876df54ddebb11cb2c668c4c7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98f3952 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild