$ git clone -n https://src.fedoraproject.org/rpms/tcpdump.git /var/lib/mock/f39-build-1576718-37946/root/chroot_tmpdir/scmroot/tcpdump
Cloning into '/var/lib/mock/f39-build-1576718-37946/root/chroot_tmpdir/scmroot/tcpdump'...
$ git fetch origin 0368c37596b6623aa109044bc51d601b9a2a8767:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tcpdump
 * [new ref]         0368c37596b6623aa109044bc51d601b9a2a8767 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0368c37 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild