$ git clone -n https://src.fedoraproject.org/rpms/espresso.git /var/lib/mock/f40-build-780401-130941/root/chroot_tmpdir/scmroot/espresso
Cloning into '/var/lib/mock/f40-build-780401-130941/root/chroot_tmpdir/scmroot/espresso'...
$ git fetch origin 1fa67da82e5365b7f085cb4d6749e036885014ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/espresso
 * [new ref]         1fa67da82e5365b7f085cb4d6749e036885014ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fa67da Skip unit test with numerical instabilities