$ git clone -n https://src.fedoraproject.org/rpms/shadow-utils.git /var/lib/mock/f41-build-850513-165462/root/chroot_tmpdir/scmroot/shadow-utils
Cloning into '/var/lib/mock/f41-build-850513-165462/root/chroot_tmpdir/scmroot/shadow-utils'...
$ git fetch origin 7aa371f29904e3b521ffac61eaa6f49625db1a42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/shadow-utils
 * [new ref]         7aa371f29904e3b521ffac61eaa6f49625db1a42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7aa371f Disable nscd