Getting lost of barlines if removing line breaks

See the attached score: If I remove the explicit line breaks in the lines starting with beam numbers 15, 24 and 35, then if I remove the correspondent line breaks manually, the barlines in beam 24, 35 and 48ff., each at the staff line beginning, disappear.

This happens with the self compiled development version 863c9ac.

Platform: fedora 24, x86_64.