When type some value and press the enter key the data manager call was initiated without typing the mention char '@'.
The same issue also occurred in JS platform also.
Replication Procedure :
Run the sample
Open the Network tab in Inspect window.
Type some value and press the Enter key.
Expected : The data manager call was only made in mention char typed case only.
Actual : The data manager call was not only made in mention char typed case only also made in Enter typed cases.