Build job trying to access a 1-part key, and hitting an assert error as follows:
"ERROR: assert(width) failed - file: /jenkins/workspace/LN-Candidate-withplugins-5.6.8-1/LN/centos-6.0-x86_64/HPCC-Platform/thorlcr/activities/indexread/thindexread.cpp, line 90"
Code is checking the number of parts (-1):
unsigned width = f->numParts()-1;
Which seems to be an issue for any 1-part key.