$ git clone -n https://src.fedoraproject.org/rpms/ghc-mime-types.git /var/lib/mock/f40-build-776072-128585/root/chroot_tmpdir/scmroot/ghc-mime-types
Cloning into '/var/lib/mock/f40-build-776072-128585/root/chroot_tmpdir/scmroot/ghc-mime-types'...
$ git fetch origin b8a74658a2690762dfd267bdc705423de0f9da47:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-mime-types
 * [new ref]         b8a74658a2690762dfd267bdc705423de0f9da47 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8a7465 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild