Help:$smwgPostEditUpdate

is an internal configuration parameter that sets which and how many jobs should be executed as part of a post-edit event. The configuration parameter was introduced in CiteRef::gh:smw:3318CiteRef::gh:smw:3501 and changed in CiteRef::gh:smw:3644.

Default setting
This means that jobs updating the full text search database table will be run once per request and that jobs purging the parser cache to do query updates or post-processing of annotations will be run five times per request after a respective edit triggered them.