$ git clone -n https://src.fedoraproject.org/rpms/rpm-ostree.git /var/lib/mock/f41-build-835469-158577/root/chroot_tmpdir/scmroot/rpm-ostree
Cloning into '/var/lib/mock/f41-build-835469-158577/root/chroot_tmpdir/scmroot/rpm-ostree'...
$ git fetch origin 3c602a23787fd2df873c0b18df3133c9fec4b66a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpm-ostree
 * [new ref]         3c602a23787fd2df873c0b18df3133c9fec4b66a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c602a2 Require fuse3 as ostree now uses it