$ git clone -n https://src.fedoraproject.org/rpms/blosc2.git /var/lib/mock/f41-build-side-1-2908171-34732/root/chroot_tmpdir/scmroot/blosc2
Cloning into '/var/lib/mock/f41-build-side-1-2908171-34732/root/chroot_tmpdir/scmroot/blosc2'...
$ git fetch origin d70ae9450902ddb565563bfdb6fac63fd45bf816:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/blosc2
 * [new ref]         d70ae9450902ddb565563bfdb6fac63fd45bf816 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d70ae94 Version 2.15.1