when swc cache is enabled, the compiler does not pick up changes to conditional compilation arguments.

Steps to reproduce:
1. Compile attached files using:
javac -classpath <path to flex-compiler-oem.java> OEMTest.java

2. Run using:
java -cp .:<path to flex-compiler-oem.java> OEMTest

Actual Results:
Loading configuration file /Users/hero/frameworks/flex-config.xml
/Users/gauravj/Downloads/ConditionalExcludeSprite.as(26): col: 19 Error: Duplicate function definition.

public function createShapes():void
^

compiler error? true
Loading configuration file /Users/hero/frameworks/flex-config.xml
/Users/gauravj/Downloads/ConditionalExcludeSprite.as(25): col: 11 Error: Access of undefined property Ellipse.

SHAPES::Ellipse
^

compiler error? true
Loading configuration file /Users/hero/frameworks/flex-config.xml
compiler error? false
Loading configuration file /Users/hero/frameworks/flex-config.xml
compiler error? false

The last compilation succeeds even though the conditional arguments are cleared.

Expected Results:
The last compilation should fail.

Workaround (if any):
Modify the java file and comment the swc cache..