backslash not escaped when specifying a JDBC connection url

"\" is commonly used in connection URLs but not escaped via the console.

Workaround: use the backslash to escape itself... not sure if this is the actual preference here.

Start with a clean instance.

http://localhost:9990/console/App.html#datasources
disable ExampleDS
Connection tab -> edit connection url.
change from:
jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE;

to:
jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE;PROP=thing\thing

see the result:
jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE;PROP=thing hing