checkpoint

⚒️ Generated with [Fabro](https://fabro.sh)

checkpoint.json

@@ -0,0 +1,57 @@
+{
+  "timestamp": "2026-03-16T05:32:47.876203Z",
+  "current_node": "setup",
+  "completed_nodes": [
+    "start",
+    "setup"
+  ],
+  "node_retries": {
+    "start": 1,
+    "setup": 1
+  },
+  "context_values": {
+    "graph.rankdir": "LR",
+    "internal.node_visit_count": 1,
+    "internal.fidelity": "compact",
+    "failure_class": "deterministic",
+    "current.preamble": "Goal: Abstract model field should not be equal across models\nDescription\n\t\nConsider the following models:\nclass A(models.Model):\n\tclass Meta:\n\t\tabstract = True\n\tmyfield = IntegerField()\nclass B(A):\n\tpass\nclass C(A):\n\tpass\nIf I pull the fields of B and C into a shared set, one will be de-duplicated away, because they compare as equal. I found this surprising, though in practice using a list was sufficient for my need. The root of the issue is that they compare equal, as fields only consider self.creation_counter when comparing for equality.\nlen({B._meta.get_field('myfield'), C._meta.get_field('myfield')}) == 1\nB._meta.get_field('myfield') == C._meta.get_field('myfield')\nWe should adjust __eq__ so that if the field.model is different, they will compare unequal. Similarly, it is probably wise to adjust __hash__ and __lt__ to match.\nWhen adjusting __lt__, it may be wise to order first by self.creation_counter so that cases not affected by this equality collision won't be re-ordered. In my experimental branch, there was one test that broke if I ordered them by model first.\nI brought this up on IRC django-dev to check my intuitions, and those conversing with me there seemed to agree that the current behavior is not intuitive.\n\n",
+    "command.stderr": "",
+    "outcome": "fail",
+    "command.output": "fatal: destination path '.' already exists and is not an empty directory.\n",
+    "current_node": "setup",
+    "internal.retry_count.setup": 1,
+    "internal.thread_id": "start",
+    "internal.run_id": "01KKTJ3P2SY78VQ0X36S0X3Y7B",
+    "graph.goal": "Abstract model field should not be equal across models\nDescription\n\t\nConsider the following models:\nclass A(models.Model):\n\tclass Meta:\n\t\tabstract = True\n\tmyfield = IntegerField()\nclass B(A):\n\tpass\nclass C(A):\n\tpass\nIf I pull the fields of B and C into a shared set, one will be de-duplicated away, because they compare as equal. I found this surprising, though in practice using a list was sufficient for my need. The root of the issue is that they compare equal, as fields only consider self.creation_counter when comparing for equality.\nlen({B._meta.get_field('myfield'), C._meta.get_field('myfield')}) == 1\nB._meta.get_field('myfield') == C._meta.get_field('myfield')\nWe should adjust __eq__ so that if the field.model is different, they will compare unequal. Similarly, it is probably wise to adjust __hash__ and __lt__ to match.\nWhen adjusting __lt__, it may be wise to order first by self.creation_counter so that cases not affected by this equality collision won't be re-ordered. In my experimental branch, there was one test that broke if I ordered them by model first.\nI brought this up on IRC django-dev to check my intuitions, and those conversing with me there seemed to agree that the current behavior is not intuitive.\n",
+    "failure_signature": "setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.",
+    "internal.retry_count.start": 1,
+    "thread.start.current_node": "setup"
+  },
+  "logs": [],
+  "node_outcomes": {
+    "start": {
+      "status": "success",
+      "duration_ms": 0
+    },
+    "setup": {
+      "status": "fail",
+      "context_updates": {
+        "command.output": "fatal: destination path '.' already exists and is not an empty directory.\n",
+        "command.stderr": ""
+      },
+      "failure": {
+        "message": "Script failed with exit code: 128\n\n## stdout\nfatal: destination path '.' already exists and is not an empty directory.\n",
+        "failure_class": "deterministic"
+      },
+      "duration_ms": 85
+    }
+  },
+  "next_node_id": "solve",
+  "loop_failure_signatures": {
+    "setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.": 1
+  },
+  "node_visits": {
+    "start": 1,
+    "setup": 1
+  }
+}

nodes/setup/script_invocation.json

@@ -0,0 +1,5 @@
+{
+  "command": "git clone https://github.com/django/django.git . && git checkout 453967477e3ddae704cd739eac2449c0e13d464c && python -m pip install -e .",
+  "language": "shell",
+  "timeout_ms": null
+}

nodes/setup/script_timing.json

@@ -0,0 +1,5 @@
+{
+  "duration_ms": 85,
+  "exit_code": 128,
+  "timed_out": false
+}

nodes/setup/status.json

@@ -0,0 +1,6 @@
+{
+  "status": "fail",
+  "notes": null,
+  "failure_reason": "Script failed with exit code: 128\n\n## stdout\nfatal: destination path '.' already exists and is not an empty directory.\n",
+  "timestamp": "2026-03-16T05:32:47.876011+00:00"
+}

nodes/start/status.json

@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": null,
+  "failure_reason": null,
+  "timestamp": "2026-03-16T05:32:47.789080+00:00"
+}