Updated mediawiki/extensions
Project: mediawiki/extensions/UploadWizard  82f0784e8efbcd34db1ea5438a75f26e13c6bdb9

Do not set default values for lat and lon

Otherwise a location template is added with |0|0 coordinates (yeah! they
are valid) to each uploaded file if the user did not clear the input
fields that are hidden by default.

Can't set them to empty string, due to limtations in JsonSchema.
Setting them to null or empty string causes problems when editing
Campaign: pages

Regression introduced in 4a530c4b7341b9bb8409b194469f594f24fb5548

Bug: 51879
Change-Id: I1c3ddca19f36a7910f587a66f95b53d9facf4449