Handle URL rewriting for ZGW import/export #7547

Job	Run time
Run the Django test suite (main)	18m 43s
Run the Django test suite (elastic)	4m 41s
Build and check documentation	1m 37s
End-to-end tests, chromium	4m 19s
Check that documentation for configuration steps is up-to-date	1m 23s
End-to-end tests, firefox	4m 14s
End-to-end tests, webkit	4m 13s
End-to-end tests, msedge	4m 12s
Build (and push) Docker image	1m 44s
Upload coverage information to codecov	15s
	45m 21s

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