$ git clone -n https://src.fedoraproject.org/rpms/itcl.git /var/lib/mock/f44-build-4201459-56167/root/chroot_tmpdir/scmroot/itcl
Cloning into '/var/lib/mock/f44-build-4201459-56167/root/chroot_tmpdir/scmroot/itcl'...
$ git fetch origin 75ba4ad16a5c1c2f0d7b8e0a33ee5a8e89416fb2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/itcl
 * [new ref]         75ba4ad16a5c1c2f0d7b8e0a33ee5a8e89416fb2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75ba4ad Fix spec for .so location