Crash was due to
IntrinsicCameraParams trying to compare
distCoeffs of different size.
AutoCalib to always return the maximal size, padding smaller models with zeros. This should lead to identical behaviour (@l.dressen can you confirm?).
Additionally, a new regression test case for the old model has been added, using data from commit 76374105 (last commit before IntrinsicBox-MR)
Closes #367 (closed)