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<?php global $batcache; $batcache->keys['unique']['mobile'] = 'hello'; echo serialize($batcache->keys);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Attempt to modify property "keys" on null in /in/rCOK0:3 Stack trace: #0 {main} thrown in /in/rCOK0 on line 3
Process exited with code 255.

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