$ git clone -n https://src.fedoraproject.org/rpms/python3.7.git /var/lib/mock/f37-build-674698-75899/root/chroot_tmpdir/scmroot/python3.7
Cloning into '/var/lib/mock/f37-build-674698-75899/root/chroot_tmpdir/scmroot/python3.7'...
$ git reset --hard 979f1d447bb0b5af2fb028e0576261dad9cd93e1
HEAD is now at 979f1d4 Update to 3.7.15