Example issue:
http://parsoid.wmflabs.org:8001/result/ea33a1daa87e0fa9a4e97a2997c5e9683a6c3cb8/plwiki/Pa%C5%84stwa_%C5%9Bwiata
When serializing a link, the serializer encounters an error:
TypeError: Cannot read property 'href' of undefined
at TagTk.genericTokenMethods.getAttributeShadowInfo (/home/gabriel/src/parsoid/lib/mediawiki.parser.defines.js:170:24)
This seems to be caused by a missing ta entry.
A bisection suggests that commit 83b0de03 is to blame.
Version: unspecified
Severity: normal