A half-working converter causes more trouble than one that doesn't work.
Mark Gd as not operational if it cannot convert palette to RGB
Right now the Gd implementation is lenient when it cannot convert palette to RGB. It tries to invoke conversion even though it knows the image is palette and knows that it failed to convert to RGB. But Gd always fails in that case. And worse: On Windows, it throws FATAL
A half-working converter causes more trouble than one that doesn't work. Mark Gd as not operational if it cannot convert palette to RGB
Right now the Gd implementation is lenient when it cannot convert palette to RGB. It tries to invoke conversion even though it knows the image is palette and knows that it failed to convert to RGB. But Gd always fails in that case. And worse: On Windows, it throws FATAL