$ git clone -n https://src.fedoraproject.org/rpms/celestia.git /var/lib/mock/f40-build-792771-138594/root/chroot_tmpdir/scmroot/celestia
Cloning into '/var/lib/mock/f40-build-792771-138594/root/chroot_tmpdir/scmroot/celestia'...
$ git fetch origin a841c39af3190b24b48ad43a31c1efcf229727e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/celestia
 * [new ref]         a841c39af3190b24b48ad43a31c1efcf229727e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a841c39 Rebuild (qt6)