Since
https://gerrit.wikimedia.org/r/#/c/180811/ is now merged, the old
WikiGrok suggestion data is now obsolete. You'll want to delete the old
entries in your wikigrok_questions table and replace them with new ones.
The specific changes are that the format version number (wgq_version) has
changed from 1 to 2, and the data property in wgq_data called 'property'
has been split into 'propertyId' and 'propertyName'. See
https://www.mediawiki.org/wiki/Extension:MobileFrontend/WikiGrok#Assign_sug…
for an example of the new data format.
Kaldari