ecl bundle install <gitfile.git> fails using 7.12 Client Tools

This works using 7.10.12 Client Tools, but fails using 7.12.0-1 client tools:
ecl bundle install https://github.com/hpcc-systems/ML_Core.git 

Fail:

C:\Program Files (x86)\HPCCSystems\7.12.0\clienttools\bin>ecl bundle install https://github.com/hpcc-systems/ML_Core.git

https://github.com/hpcc-systems/ML_Core.git cannot be parsed as a bundle

Success:
C:\Program Files (x86)\HPCCSystems\7.10.12\clienttools\bin>ecl bundle install https://github.com/hpcc-systems/ML_Core.git
Installing bundle ML_Core version 3.2.2
ML_Core 3.2.2 Common definitions for Machine Learning
Installation complete