$ git clone -n https://src.fedoraproject.org/rpms/dcap.git /var/lib/mock/f41-build-828119-155557/root/chroot_tmpdir/scmroot/dcap
Cloning into '/var/lib/mock/f41-build-828119-155557/root/chroot_tmpdir/scmroot/dcap'...
$ git fetch origin 576d0069d2efc4eca69a1d6880655e908a36110d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dcap
 * [new ref]         576d0069d2efc4eca69a1d6880655e908a36110d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 576d006 Backport accepted patches from upstream