Optimize SplashClip::copy() function
When a clipping path is copied, all xpathscanner are created new. It's much faster to copy the already existing ones. This issue replaces issue #1121 which is unintentionally marked confidential
When a clipping path is copied, all xpathscanner are created new. It's much faster to copy the already existing ones. This issue replaces issue #1121 which is unintentionally marked confidential