$ git clone -n https://src.fedoraproject.org/rpms/kdepim.git /var/lib/mock/f45-build-14686-462/root/chroot_tmpdir/scmroot/kdepim
Cloning into '/var/lib/mock/f45-build-14686-462/root/chroot_tmpdir/scmroot/kdepim'...
$ git fetch origin bd50c741be2508a378337cbd05ee6ab47f3d89a5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdepim
 * [new ref]         bd50c741be2508a378337cbd05ee6ab47f3d89a5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd50c74 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild