Media string filters are case-sensitive

[davidmacp]

Expected behaviour

User should be able to filter media using strings that are both lower or uppercase and the same result should be returned

Actual behaviour

Given the following

Filename contains - (Filename seems to work correctly?)

Alt text contains

Caption contains

Copyright information contains

[eduardoboucas]

Unfortunately, this is an issue in API (dadi/api#544). There is nothing that we'll need to change in Publish once the issue is fixed upstream, but I'm going to add the blocked label and keep the issue open so that we're aware of the problem.

Thanks, @davidmacp.