$ git clone -n https://src.fedoraproject.org/rpms/ghc-unliftio-core.git /var/lib/mock/f33-build-289475-54335/root/chroot_tmpdir/scmroot/ghc-unliftio-core
Cloning into '/var/lib/mock/f33-build-289475-54335/root/chroot_tmpdir/scmroot/ghc-unliftio-core'...
$ git reset --hard a9b7cbc953d62bac832fee54c4c457499e5bc2fd
HEAD is now at a9b7cbc - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild