$ git clone -n https://src.fedoraproject.org/rpms/slirp4netns.git /var/lib/mock/f42-build-866822-174160/root/chroot_tmpdir/scmroot/slirp4netns
Cloning into '/var/lib/mock/f42-build-866822-174160/root/chroot_tmpdir/scmroot/slirp4netns'...
$ git fetch origin c851ee31708d53f3ee2a0b0031baddbe5603bd8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/slirp4netns
 * [new ref]         c851ee31708d53f3ee2a0b0031baddbe5603bd8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c851ee3 bump to v1.3.1