How can I get the code 1.11.1 cloned?

I´m searching for a way to define V1.11.1 as working version in the directory, but all ways of proceeding fail. git checkout v1.11.1 there is no such version available. From master the NuttX release has changed so the make procedure stops with errors.
For me 1.11.1 seems to be the best version, but I need various adjustments to fly it. How can I get the V 1.11.1 recursive cloned to a particular directory to be able to edit files and make the code afterwards.

git fetch origin
git checkout v1.11.1
make distclean

Then you should be able to build it (e.g.: make px4_fmu-v5_default upload)

1000 thanx, works perfect