Ctrl+S saves the tooling HTML file instead of saving Siddhi file

[BuddhiWathsala]

Description:
$subject happens with the following log.

[2020-01-16 11:52:59,159]  WARN {org.wso2.msf4j.internal.MSF4JHttpConnectorListener} - Error in http connector listener : 'Remote client closed the connection before initiating outbound response'
[2020-01-16 11:53:02,826]  WARN {org.wso2.msf4j.internal.MSF4JHttpConnectorListener} - Error in http connector listener : 'Remote client closed the connection before initiating outbound response'

Suggested Labels:
Bugfix

Affected Product Version:
5.1.2

OS, DB, other environment details and versions:
java version "1.8.0_201"

Steps to reproduce:
Couldn’t figure out specific ways to reproduce. After working in tooling for a certain amount of time, it will occur.