$ git clone -n https://src.fedoraproject.org/rpms/ghc-unbounded-delays.git /var/lib/mock/f40-build-2280027-55375/root/chroot_tmpdir/scmroot/ghc-unbounded-delays
Cloning into '/var/lib/mock/f40-build-2280027-55375/root/chroot_tmpdir/scmroot/ghc-unbounded-delays'...
$ git fetch origin 643325eeb6697b0b343353542aa51e922a83bf5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-unbounded-delays
 * [new ref]         643325eeb6697b0b343353542aa51e922a83bf5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 643325e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild