Assertion at matrix_wrap.cpp:807 when saving image if imageclipper was compiled with OpenCV 3.4.1

[jekhor]

Fails for me because of bug in OpenCV C API: opencv/opencv#11076:

Key pressed: 115
OpenCV(3.4.1) Error: Assertion failed ((flags & FIXED_TYPE) != 0) in type, file /home/jek/work/src/opencv/deb/build-area/opencv-3.4.1/modules/core/src/matrix_wrap.cpp, line 807
terminate called after throwing an instance of 'cv::Exception'
what(): OpenCV(3.4.1) /home/jek/work/src/opencv/deb/build-area/opencv-3.4.1/modules/core/src/matrix_wrap.cpp:807: error: (-215) (flags & FIXED_TYPE) != 0 in function type

[clasick]

Same here. Any idea how to do an interim fix till the next release?