chore: bump mathlib to fbf0644: ci: self-heal nightly-testing-green after a history rewrite (#40586) (2026-06-18)

Author: github-actions[bot]

lake-manifest.json

@@ -5,10 +5,10 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "9a9483a92959bc92bd6a60176dd1fe597298c1f8",
+   "rev": "fbf0644640719705c7dbfbf3fa9df21844858fd6",
    "name": "mathlib",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "9a9483a92959bc92bd6a60176dd1fe597298c1f8",
+   "inputRev": "fbf0644640719705c7dbfbf3fa9df21844858fd6",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover/verso",

lakefile.toml

@@ -17,7 +17,7 @@ rev = "main"
 [[require]]
 name = "mathlib"
 scope = "leanprover-community"
-rev = "9a9483a92959bc92bd6a60176dd1fe597298c1f8"
+rev = "fbf0644640719705c7dbfbf3fa9df21844858fd6"
 
 [[lean_lib]]
 name = "LeanMachineLearning"