$ git clone -n https://src.fedoraproject.org/rpms/mingw-libidl.git /var/lib/mock/f38-build-side-42-init-devel-677799-26694/root/chroot_tmpdir/scmroot/mingw-libidl
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-677799-26694/root/chroot_tmpdir/scmroot/mingw-libidl'...
$ git fetch origin d8ecb98b20865edcc9be06a3b4d52039dcdf31a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-libidl
 * [new ref]         d8ecb98b20865edcc9be06a3b4d52039dcdf31a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8ecb98 Initial setup of the repo