$ git clone -n https://src.fedoraproject.org/rpms/dbus-c++.git /var/lib/mock/f39-build-1570646-37774/root/chroot_tmpdir/scmroot/dbus-c++
Cloning into '/var/lib/mock/f39-build-1570646-37774/root/chroot_tmpdir/scmroot/dbus-c++'...
$ git fetch origin 8b35ec872ddde52073b0a9b36671f0e2e4003541:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dbus-c++
 * [new ref]         8b35ec872ddde52073b0a9b36671f0e2e4003541 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b35ec8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild