only variables defined in HTTP recorder should be substitued in HTTP requests, but variables defined under the test plan are also substituted.

**dwight7** ([Bug 62511](https://bz.apache.org/bugzilla//show_bug.cgi?id=62511&redirect=false)):
It is normal for variables defined under the HTTP recorder to be substitued in the recorded request ( like HOSTNAME = my.host.domain.com defined as a variable under the recorder will substitute $HOSTNAME whenever it encounters my.host.domain.com in the recording ).

However, i had the variable TIMER_DELAY=0 defined directly under the testplan (NOT in the http recorder). and whenever i recorded anything, it would be filled with $TIMER_DELAY variables where ever there had been a "0" in the request.

this is a bug.

OS: All