$ git clone -n https://src.fedoraproject.org/rpms/ghc-regex-tdfa.git /var/lib/mock/f40-build-742447-110760/root/chroot_tmpdir/scmroot/ghc-regex-tdfa
Cloning into '/var/lib/mock/f40-build-742447-110760/root/chroot_tmpdir/scmroot/ghc-regex-tdfa'...
$ git reset --hard d95e619e2edff1efffc0f6a720bfb2d3a23add63
HEAD is now at d95e619 https://hackage.haskell.org/package/regex-tdfa-1.3.2.1/changelog