Issue:

Some rules doesn't show up in uBlock Origin's logger, when using the Legacy version.
This makes it very difficult to troubleshoot some filter issues.

Examples:

https://github.com/uBlockOrigin/uAssets/issues/4660/#issuecomment-455715636

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• OS/version: Windows 8.1 Pro (x64)
• Browser/version: Pale Moon v28.3.0 (x64)
• Adblock Extension/version: uBlock Origin v1.16.4.6 (XUL)