$ git clone -n https://src.fedoraproject.org/rpms/gnumeric.git /var/lib/mock/f40-build-2218217-52595/root/chroot_tmpdir/scmroot/gnumeric
Cloning into '/var/lib/mock/f40-build-2218217-52595/root/chroot_tmpdir/scmroot/gnumeric'...
$ git fetch origin 2fe19b0d2b183235ccca41eaac94b960fd78dbd0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnumeric
 * [new ref]         2fe19b0d2b183235ccca41eaac94b960fd78dbd0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2fe19b0 Fix building against libxml2 2.12.0