Negative Buffer with mitre join fails with TopologyException

[dr-jts]

Negative buffer with a mitre join causes TopologyException: unable to assign hole to a shell.

Using a mitre limit of 1 works:

Zoomed in:

Reproducer

geom.txt

geosop -a geom.txt bufferJoin N-0.0008 N-5

Run-time exception: TopologyException: unable to assign hole to a shell

Original report: https://trac.osgeo.org/postgis/ticket/5774

JTS

JTS produces a result, but it is highly precision-reduced to the point of being useless. This indicates a topology failure occurring internally.