$ git clone -n https://src.fedoraproject.org/rpms/rpm-spec-language-server.git /var/lib/mock/f42-bootstrap-3462913-45593/root/chroot_tmpdir/scmroot/rpm-spec-language-server
Cloning into '/var/lib/mock/f42-bootstrap-3462913-45593/root/chroot_tmpdir/scmroot/rpm-spec-language-server'...
$ git fetch origin 9bf37e42515d23faba60862e48c5233cfbbdf793:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpm-spec-language-server
 * [new ref]         9bf37e42515d23faba60862e48c5233cfbbdf793 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9bf37e4 Remove unused and duplicated BuildRequires