$ git clone -n https://src.fedoraproject.org/rpms/kdepim3.git /var/lib/mock/f41-build-1021809-18037/root/chroot_tmpdir/scmroot/kdepim3
Cloning into '/var/lib/mock/f41-build-1021809-18037/root/chroot_tmpdir/scmroot/kdepim3'...
$ git fetch origin 3aaa97751967baef68b135432d3be5b9871a99f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdepim3
 * [new ref]         3aaa97751967baef68b135432d3be5b9871a99f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3aaa977 Eliminate use of obsolete %patchN syntax (#2283636)