I suspect that the code in lib/lp/poppy/twistedftp.py: PoppyFileWriter.validateGPG() should be ignoring some kinds of errors. The dput warning here is probably indicative of the problem.
I suspect that the code in lib/lp/ poppy/twistedft p.py: PoppyFileWriter .validateGPG( ) should be ignoring some kinds of errors. The dput warning here is probably indicative of the problem.