$ git clone -n https://src.fedoraproject.org/rpms/gr-osmosdr.git /var/lib/mock/f38-build-side-42-init-devel-617827-26325/root/chroot_tmpdir/scmroot/gr-osmosdr
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-617827-26325/root/chroot_tmpdir/scmroot/gr-osmosdr'...
$ git fetch origin a9af045b54ec968706cf9b706cca1cdf42dc3adf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gr-osmosdr
 * [new ref]         a9af045b54ec968706cf9b706cca1cdf42dc3adf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9af045 Rebuilt for new uhd