Search endpoint return different results for URLs with 'http' and 'http' protocols

[esanzgar]

This issue is related to #6472.

The API should return the same results for URLs independent of the type of protocol: http or https.

Steps to reproduce

1. curl 'https://hypothes.is/api/search?uri=http%3A%2F%2Fexample.com%2F'
2. curl 'https://hypothes.is/api/search?uri=https%3A%2F%2Fexample.com%2F'

Expected behaviour

1. and 2) return same annotations.

Actual behaviour

1. and 2) return different amount of annotations.

Additional details

In contrast to #6472, this issue is also present when the URL is not encoded. These two requests also return different amounts of annotations:

• curl 'https://hypothes.is/api/search?uri=http://example.com/'
• curl 'https://hypothes.is/api/search?uri=https://example.com/'