Describe the issue:

In the test code below, "order" == "F" is always false. This has to be unintended. And if so, the test itself is wrong, isn't it?

Introduced by 95ef5b7 / #6129.

Environment:

• Dask version: main
• Python version: N/A
• Operating System: N/A
• Install method (conda, pip, source): N/A