$ git clone -n https://src.fedoraproject.org/rpms/flexiblas.git /var/lib/mock/f40-build-1858807-24992/root/chroot_tmpdir/scmroot/flexiblas
Cloning into '/var/lib/mock/f40-build-1858807-24992/root/chroot_tmpdir/scmroot/flexiblas'...
$ git fetch origin 58784bc92ddd3359aa8061497722ed5dea210b7a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flexiblas
 * [new ref]         58784bc92ddd3359aa8061497722ed5dea210b7a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58784bc Disable ATLAS and BLIS in flatpak builds