$ git clone -n https://src.fedoraproject.org/rpms/tcpreen.git /var/lib/mock/f42-build-886589-187534/root/chroot_tmpdir/scmroot/tcpreen
Cloning into '/var/lib/mock/f42-build-886589-187534/root/chroot_tmpdir/scmroot/tcpreen'...
$ git fetch origin f2a9b06cc7969ee059e22d7a515d3177126a3568:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tcpreen
 * [new ref]         f2a9b06cc7969ee059e22d7a515d3177126a3568 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2a9b06 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild