$ git clone -n https://src.fedoraproject.org/rpms/ghc-url.git /var/lib/mock/f40-build-2280047-55377/root/chroot_tmpdir/scmroot/ghc-url
Cloning into '/var/lib/mock/f40-build-2280047-55377/root/chroot_tmpdir/scmroot/ghc-url'...
$ git fetch origin 743376bba0b070ab25ca2db59e1bf62e09b77d79:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-url
 * [new ref]         743376bba0b070ab25ca2db59e1bf62e09b77d79 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 743376b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild