- 
    Bug 
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    Resolution: Done
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    P2: Important 
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    5.3.1
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    Windows 7 - MinGW 64bit 4.8.3
[MinGW 64bit]: When evaluating a script that checks if the string is a number with a regexp then it will fail. This only happens on MinGW 64bit, it does not happen on other platforms including MSVC 2013 64bit.