[8.19] Bug fix, last optimised value in ESUTF8StreamJsonParser kept old value. (#135184)#135622

gmarouli merged 2 commits intoelastic:8.19elastic/elasticsearch:8.19from

gmarouli:backport/8.19/pr-135184gmarouli/elasticsearch:backport/8.19/pr-135184Copy head branch name to clipboard