And lo, after plenty of searching I have turned up
<mime-type type="application/postscript">
<sub-class-of type="text/plain"/>
inside
/usr/share/mime/packages/freedesktop.org.xml-- abiword eats memory (possible OOM) and hangs when opening PDFs https://launchpad.net/bugs/44523 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
