imagemagick/ping_sixel_fuzzer: Crash in RelinquishMagickMemory

Project: https://github.com/imagemagick/imagemagick.git Detailed report: https://oss-fuzz.com/testcase?key=5677373754703872 Project: imagemagick Fuzzer: libFuzzerimagemagickpingsixelfuzzer Fuzz target binary: pingsixelfuzzer Job Type: libfuzzerasanimagemagick Platform Id: linux Crash Type: UNKNOW...