This PR was merged into the 2.0.x-dev branch.

Discussion
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cascade route configuration for embedded route collection

In 4e6031e2, I added a safeguard by mistake which makes configuration on nested collection not possible. This fixes this issue but only for the upcoming 2.0 branch as it might break BC.

fixes #1017, #1100, and #1081

Commits
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48727b4d cascade route configuration for embedded route collection