I use jenkins1.654 with the last version of git plugins.
The last working version was 1.653 with the n-1 version of git plugin.
I use "checkout to a subdirectory" option.
With the last version of jenkins, the directory I put in the "checkout to a subdirectory" field disappears. So, everything hangs now. I need to put again all the subdirectory in every project and rebuild everything from scratch ...