Image manipulation returns same with changed parameters

[philippguertler]

Gentics Mesh Version, operating system, or hardware.

• v0.30.2

Problem

When changing the parameters of an image manipulation request, it can happen that an old cached image is returned even though the parameters have changed.

Reproducer

1. Upload an image
2. Fetch the image like this: http://localhost:8081/api/v1/test/nodes/fe7a22767bc14db7ba22767bc14db721/binary/binary?w=300&h=400&fpx=0.46&fpy=0.35&fpdebug=true&crop=fp&fpz=2
3. Fetch it again and remove the fpz parameter: http://localhost:8081/api/v1/test/nodes/fe7a22767bc14db7ba22767bc14db721/binary/binary?w=300&h=400&fpx=0.46&fpy=0.35&fpdebug=true&crop=fp

Expected behaviour and actual behaviour

I expected the zoomed out image to be returned, but instead I get the previous image again.

[philippguertler]

Prime suspect:

mesh/common/src/main/java/com/gentics/mesh/core/image/spi/AbstractImageManipulator.java

Line 53 in 8cc2659

File[] foundFiles = baseFolder.listFiles((dir, name) -> name.startsWith(baseName));