JavaScriptExpert
diff --git a/‎apps/rush-lib/src/cli/actions/PublishAction.ts‎
Lines changed: 5 additions & 0 deletions b/‎apps/rush-lib/src/cli/actions/PublishAction.ts‎
Lines changed: 5 additions & 0 deletions
diff --git a/‎common/changes/@microsoft/rush/master_2019-09-09-18-25.json‎
Lines changed: 11 additions & 0 deletions b/‎common/changes/@microsoft/rush/master_2019-09-09-18-25.json‎
Lines changed: 11 additions & 0 deletions
@@ -327,6 +327,11 @@ export class PublishAction extends BaseRushAction {
             return;
           }
 
+          // Do not tag packages that already exist. This will fail with a fatal error.
+          if (this._packageExists(packageConfig)) {
+            return;
+          }
+
           git.addTag(!!this._publish.value && !this._registryUrl.value, packageName, packageConfig.packageJson.version);
           updated = true;
         };
 
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "comment": "Fix an issue where Rush attempted to add Git tags for packages that had already been published when the publish command is run with the --pack and --apply-git-tags-on-pack flags. This caused a fatal error when tags already existed.",
+      "packageName": "@microsoft/rush",
+      "type": "none"
+    }
+  ],
+  "packageName": "@microsoft/rush",
+  "email": "chaseholland@users.noreply.github.com"
+}