item.persistence.lastUpdate() not always working

Hi Tobias,

see discussion on this thread.

long story short:

  • if there’s an update of the item value in parallel to the time your lastUpdate-call, the response is ‘null’
  • there’s an lastUpdate attribute in the making on the item itself - no persistence needed, coming with 4.3 if all works out
  • for the time being, you could insert an if-clause on the lastUpdate for “null” and then try again with the next rule-call…