Requeue parent path after processing optionals

packages/babel-plugin-proposal-optional-chaining/src/index.js

@@ -111,6 +111,9 @@ export default declare((api, options) => {
           replacementPath = parentPath;
           isDeleteOperation = true;
         }
+
+        let needsRequeue = false;
+
         for (let i = optionals.length - 1; i >= 0; i--) {
           const node = optionals[i];
 
@@ -237,6 +240,15 @@ export default declare((api, options) => {
               replacementPath.get("alternate"),
             );
           }
+
+          needsRequeue = true;
+        }
+
+        // TODO(bng): Continue investigating why changes in https://github.com/babel/babel/pull/12302
+        // now need this requeue (and also why this _specific_ requeue,
+        // replacementPath.requeue() doesn't work).
+        if (needsRequeue) {
+          parentPath.requeue();
         }
       },
     },

packages/babel-plugin-transform-typescript/test/fixtures/variable-declaration/non-null-in-optional-chain/input.ts

@@ -0,0 +1,2 @@
+const a = 1;
+const b = () => a?.b?.c!.d;

packages/babel-plugin-transform-typescript/test/fixtures/variable-declaration/non-null-in-optional-chain/options.json

@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-typescript", "proposal-optional-chaining"]
+}

packages/babel-plugin-transform-typescript/test/fixtures/variable-declaration/non-null-in-optional-chain/output.js

@@ -0,0 +1,7 @@
+const a = 1;
+
+const b = () => {
+  var _a$b;
+
+  return a === null || a === void 0 ? void 0 : (_a$b = a.b) === null || _a$b === void 0 ? void 0 : _a$b.c.d;
+};