$ git clone -n https://src.fedoraproject.org/rpms/ghc-megaparsec.git /var/lib/mock/f40-build-776469-128863/root/chroot_tmpdir/scmroot/ghc-megaparsec
Cloning into '/var/lib/mock/f40-build-776469-128863/root/chroot_tmpdir/scmroot/ghc-megaparsec'...
$ git fetch origin 011a49402e38921391d0e914a56546473a1b3bf0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-megaparsec
 * [new ref]         011a49402e38921391d0e914a56546473a1b3bf0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 011a494 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild