@Balu Ertl,
+++ b/core/modules/tracker/js/tracker-history.es6.js
@@ -19,7 +19...

@Balu Ertl,

+++ b/core/modules/tracker/js/tracker-history.es6.js
@@ -19,7 +19,7 @@
if (timestamp > lastViewTimestamp) {
const message =
lastViewTimestamp === 0 ? newNodeString : updatedNodeString;
- $(placeholder).append(`${message}`);
+ $(placeholder).append(` ${message}`);
}
});
}

changes is not required.