$ git clone -n https://src.fedoraproject.org/rpms/plasmatube.git /var/lib/mock/f39-build-2152229-50907/root/chroot_tmpdir/scmroot/plasmatube
Cloning into '/var/lib/mock/f39-build-2152229-50907/root/chroot_tmpdir/scmroot/plasmatube'...
$ git fetch origin e147be86b515ca4e52819d1dc5890f77a4d03405:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasmatube
 * [new ref]         e147be86b515ca4e52819d1dc5890f77a4d03405 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e147be8 23.08.4