$ git clone -n https://src.fedoraproject.org/rpms/ghc-HTTP.git /var/lib/mock/f40-build-776923-129159/root/chroot_tmpdir/scmroot/ghc-HTTP
Cloning into '/var/lib/mock/f40-build-776923-129159/root/chroot_tmpdir/scmroot/ghc-HTTP'...
$ git fetch origin 140f5756f3979f95925dc1aef043daaa9936ca2c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-HTTP
 * [new ref]         140f5756f3979f95925dc1aef043daaa9936ca2c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 140f575 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild