[BUG] Default URL path encoding differs between `main` & `2.x`

[al-niessner]

What is the bug?

See unit test updates. They work on main but not 2.x.

How can one reproduce the bug?

Run EndpointTest on main (passes) and then 2.x (fails)

What is the expected behavior?

Should behave the same if all code changes were moved to 2.x

What is your host/environment?

Eclipse on Linux

Do you have any screenshots?

No but can provide if critical

Do you have any additional context?

Updated unit tests on the way. Related to #1068 and #999 and #1012 and possibly others.