$ git clone -n https://src.fedoraproject.org/rpms/bcc.git /var/lib/mock/f40-build-2271599-54889/root/chroot_tmpdir/scmroot/bcc
Cloning into '/var/lib/mock/f40-build-2271599-54889/root/chroot_tmpdir/scmroot/bcc'...
$ git fetch origin 5316e8fe8c670018ed29bbad302d0f0f436a4f66:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bcc
 * [new ref]         5316e8fe8c670018ed29bbad302d0f0f436a4f66 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5316e8f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild