poppler:doc_fuzzer: Use-of-uninitialized-value in Parser::shift

Project: https://anongit.freedesktop.org/git/poppler/poppler.git https://gitlab.freedesktop.org/poppler/poppler.git https://gitlab.freedesktop.org/ceyhunalp/poppler.git Detailed Report: https://oss-fuzz.com/testcase?key=6162179452895232 Project: poppler Fuzzing Engine: libFuzzer Fuzz Target:...