$ git clone -n https://src.fedoraproject.org/rpms/ghc-binary-shared.git /var/lib/mock/f42-build-877478-180226/root/chroot_tmpdir/scmroot/ghc-binary-shared
Cloning into '/var/lib/mock/f42-build-877478-180226/root/chroot_tmpdir/scmroot/ghc-binary-shared'...
$ git fetch origin 38a0e92594686863e4e0d7e1c0e9a2c975f04420:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-binary-shared
 * [new ref]         38a0e92594686863e4e0d7e1c0e9a2c975f04420 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38a0e92 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild