TDML Runner remembers external variable bindings even on subsequent test suites that don't use them.

A schema has two separate TDML test suites.

The schema has an external variable that has a default value of 2.

The first TDML test suite binds the variable to 0.

The second TDML test suite does not bind the variable, but the tests require that the default value of 2 is used.

Each test suite, run separately works fine.

When run together the 2nd one fails. It is getting the "0" value that was set for the external variable.

Even if you ALSO set the external variable in the 2nd test suite, the bug still occurs. Seemingly because the earlier external variable binding is "winning" for some reason.

The TDML runner needs to reset state of external variables for each test suite.