$ git clone -n https://src.fedoraproject.org/rpms/ghc-yesod-core.git /var/lib/mock/f40-build-770244-125829/root/chroot_tmpdir/scmroot/ghc-yesod-core
Cloning into '/var/lib/mock/f40-build-770244-125829/root/chroot_tmpdir/scmroot/ghc-yesod-core'...
$ git reset --hard a410558be4435cee33f830b5f5605f7736d02ebd
HEAD is now at a410558 https://hackage.haskell.org/package/yesod-core-1.6.24.3/changelog