)]}'
{
  "commit": "a4080da91f147e5fc82dcbfec6af546f028514fa",
  "tree": "93a7bfc2dcd5cb8a359fc7f1cd65479a2443a14a",
  "parents": [
    "708acf28c2b04f0279cda03a60299035187eac07"
  ],
  "author": {
    "name": "schmitt",
    "email": "schmitt@google.com",
    "time": "Mon May 20 13:12:46 2019 -0700"
  },
  "committer": {
    "name": "Copybara-Service",
    "email": "copybara-worker@google.com",
    "time": "Mon May 20 13:14:57 2019 -0700"
  },
  "message": "Automated rollback of commit 37deb2685b278e7f19b1aee5a77ca9fc601860a3.\n\n*** Reason for rollback ***\n\nRolling the original forward unchanged, it was not in fact the root cause for the problem it was identified for.\n\n*** Original change description ***\n\nAutomated rollback of commit 0c2ddc499d9fafa99ab3298b7eabdafb59946bfd.\n\n*** Reason for rollback ***\n\nCan cause duplicate action conflicts\n\n*** Original change description ***\n\nQuery performance: skip attributes w/o labels\n\nBefore:\n0m16.264s\n0m6.002s\n0m4.928s\n0m5.186s\n\nAfter:\n0m14.313s\n0m6.017s\n0m5.458s\n0m5.301s\nPiperOrigin-RevId: 249111272\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "ad97ec38d700d31fa09db46ed11032ede6ea010e",
      "old_mode": 33188,
      "old_path": "src/main/java/com/google/devtools/build/lib/packages/AggregatingAttributeMapper.java",
      "new_id": "eb7d0bd7bd5a1a377dde0894f868a620665c1e0d",
      "new_mode": 33188,
      "new_path": "src/main/java/com/google/devtools/build/lib/packages/AggregatingAttributeMapper.java"
    },
    {
      "type": "modify",
      "old_id": "37a2b7c891abdaba90cea310d72bba33f9dbeb7d",
      "old_mode": 33188,
      "old_path": "src/main/java/com/google/devtools/build/lib/packages/RuleClass.java",
      "new_id": "86730ac76547f3d26b3c5f07f09cfed221d234af",
      "new_mode": 33188,
      "new_path": "src/main/java/com/google/devtools/build/lib/packages/RuleClass.java"
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}