feat(git): case-insensitive status lookup on ignorecase repos

test/git/repo_test.lua

@@ -173,6 +173,34 @@ t.test("_invalidate clears refs/head/resolve for refs/heads/*", function()
     t.truthy(r._cache.stash_refs)
 end)
 
+t.test("_invalidate clears config on .git/config change", function()
+    local dir = h.make_repo({ a = "x" })
+    local r = assert(require("git.core.repo").resolve(dir))
+    r._cache.config = { core = {} }
+    r:_invalidate("config")
+    t.eq(r._cache.config, nil)
+end)
+
+t.test("status_entry_for: exact match on case-sensitive repo", function()
+    local dir = h.make_repo({ Foo = "x" })
+    t.write(dir, "Foo", "modified")
+    local r = assert(require("git.core.repo").resolve(dir))
+    wait_initial(r)
+    t.truthy(r:status_entry_for("Foo"))
+    t.eq(r:status_entry_for("foo"), nil, "case mismatch returns nil")
+end)
+
+t.test("status_entry_for: case-insensitive fallback when core.ignorecase=true", function()
+    local dir = h.make_repo({ Foo = "x" })
+    h.git(dir, "config", "core.ignorecase", "true")
+    t.write(dir, "Foo", "modified")
+    local r = assert(require("git.core.repo").resolve(dir))
+    wait_initial(r)
+    t.truthy(r:status_entry_for("Foo"), "exact match")
+    t.truthy(r:status_entry_for("foo"), "lowercase finds Foo")
+    t.truthy(r:status_entry_for("FOO"), "uppercase finds Foo")
+end)
+
 t.test("_invalidate matches stash_refs on refs/stash and logs/refs/stash", function()
     local dir = h.make_repo({ a = "x" })
     local r = assert(require("git.core.repo").resolve(dir))