$ git clone -n https://git.cclinux.org/stage/rpms/ghc-regex-base.git /var/lib/mock/dist-circle8-build-37579-6631/root/chroot_tmpdir/scmroot/ghc-regex-base
Cloning into '/var/lib/mock/dist-circle8-build-37579-6631/root/chroot_tmpdir/scmroot/ghc-regex-base'...
$ git reset --hard 6ba2f79777be8bb3dd48eb84dab7614e821bd777
HEAD is now at 6ba2f79 import ghc-regex-base-0.93.2-39.el8