$ git clone -n https://src.fedoraproject.org/rpms/doublecmd.git /var/lib/mock/f39-build-2393331-60529/root/chroot_tmpdir/scmroot/doublecmd
Cloning into '/var/lib/mock/f39-build-2393331-60529/root/chroot_tmpdir/scmroot/doublecmd'...
$ git fetch origin 271211cf66e965d9fce606010949e316172bd3fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/doublecmd
 * [new ref]         271211cf66e965d9fce606010949e316172bd3fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 271211c Fix build.