Change Details

Without this, docker run fails with: ``` swh.core.api.RemoteException: <RemoteException 500 AttributeError: ["'dict' object has no attribute 'url'"]> ``` the `self.origin` references being set to a dict instead of this method which defines it as a dict. My best guess is that the method is not properly overridden without it. No idea why the test do not capture this though. I'm just unstucking this. Note that's not enough as other issues befall after that.

Without this, docker run fails with multiple errors (1 after the other fix): ``` swh.core.api.RemoteException: <RemoteException 500 AttributeError: ["'dict' object has no attribute 'url'"]> ``` the `self.origin` references being set to a dict instead of this method which defines it as a dict. My best guess is that the method is not properly overridden without it. No idea why the test do not capture this though. I'm just unstucking this. Note that's not enough as other issues befall after that. This also fixes serialization issues: - `map` is not ok when calling `storage.content_missing` - set are not ok when calling `storage.{revision|release}_missing`

Without this, docker run fails with multiple errors (1 after the other fix): ``` swh.core.api.RemoteException: <RemoteException 500 AttributeError: ["'dict' object has no attribute 'url'"]> ``` the `self.origin` references being set to a dict instead of this method which defines it as a dict. My best guess is that the method is not properly overridden without it. No idea why the test do not capture this though. I'm just unstucking this. Note that's not enough as other issues befall after that. This also fixes serialization issues: - `map` is not ok when calling `storage.content_missing` - set are not ok when calling `storage.{revision|release}_missing`