Last modified: 2013-07-25 07:07:45 UTC
If a form that containing a datepicker is used for querying with Special:RunQuery everything works fine. If the call to Special:RunQuery is transcluded in a page, the JavaScript (both inline and files) is not loaded. This bug probably not only applies to the datepicker, but to all other SFI input types as well.
Related URL: https://gerrit.wikimedia.org/r/63014 (Gerrit Change I5e42325808f6121e7f533b778df30eeea9f2f89f)
Fixed in I5e423258
https://gerrit.wikimedia.org/r/63014 (Gerrit Change I5e42325808f6121e7f533b778df30eeea9f2f89f) | change APPROVED and MERGED [by Foxtrott]