$ git clone -n https://src.fedoraproject.org/rpms/ghc-gi-gdk.git /var/lib/mock/f40-build-2639144-66340/root/chroot_tmpdir/scmroot/ghc-gi-gdk
Cloning into '/var/lib/mock/f40-build-2639144-66340/root/chroot_tmpdir/scmroot/ghc-gi-gdk'...
$ git fetch origin c5a76ab0165e5d7740758f3b7a1a3f66a18216b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-gi-gdk
 * [new ref]         c5a76ab0165e5d7740758f3b7a1a3f66a18216b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5a76ab Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild