Index: clang/unittests/Format/FormatTestRawStrings.cpp
===================================================================
--- clang/unittests/Format/FormatTestRawStrings.cpp
+++ clang/unittests/Format/FormatTestRawStrings.cpp
@@ -75,6 +75,31 @@
     return Style;
   }

+  FormatStyle getRawStringPbStyleSeparateSection() {
+    constexpr const char *FormatStr = R"format(---
+BasedOnStyle: LLVM
+ColumnLimit: 40
+RawStringFormats:
+  - Language: TextProto
+    Delimiters:
+      - 'pb'
+    BasedOnStyle: google
+---
+Language: TextProto
+# Don't set any options.
+...
+)format";
+    llvm::MemoryBufferRef ConfigBuffer(FormatStr, "ClangFormatConfig");
+    FormatStyle Style = {};
+    Style.Language = FormatStyle::LK_Cpp;
+    if (auto Err = parseConfiguration(ConfigBuffer, &Style)) {
+      llvm::dbgs() << Err.value();
+      llvm::dbgs() << Err.message();
+      assert(Err);
+    }
+    return Style;
+  }
+
   FormatStyle getRawStringLLVMCppStyleBasedOn(std::string BasedOnStyle) {
     FormatStyle Style = getLLVMStyle();
     Style.RawStringFormats = {
@@ -164,6 +189,18 @@
                    getRawStringPbStyleWithColumns(40)));
 }

+// Currently a bug in how configs are processed:
+// See: https://github.com/llvm/llvm-project/issues/62871
+TEST_F(FormatTestRawStrings,
+       DISABLED_FormatsCorrectlyWhenTextProtoIsInOwnSection) {
+  // TextProto formatting works when in a RawString.
+  expect_eq(R"test(
+t = R"pb(item: 1)pb";)test",
+            format(R"test(
+t = R"pb(item:1)pb";)test",
+                   getRawStringPbStyleSeparateSection()));
+}
+
 TEST_F(FormatTestRawStrings, RespectsClangFormatOff) {
   expect_eq(R"test(
 // clang-format off