$ git clone -n https://src.fedoraproject.org/rpms/ghc-hourglass.git /var/lib/mock/f40-build-776053-128585/root/chroot_tmpdir/scmroot/ghc-hourglass
Cloning into '/var/lib/mock/f40-build-776053-128585/root/chroot_tmpdir/scmroot/ghc-hourglass'...
$ git fetch origin 8353faaaf092b614c3519d385ba4593cc0bee29a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hourglass
 * [new ref]         8353faaaf092b614c3519d385ba4593cc0bee29a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8353faa Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild