Github user NicoK commented on the issue: https://github.com/apache/flink/pull/4961 Fixed on master in 0e5fb0b78cd0a3ccb144071a47579eb6c3d0570a e9e7c3372189db7e933ff59114b9ec6245838eda Fixed on release-1.4 in 25a28ab32609c45fb8c40f717148e32fb453d2fc 9f68212603e3601e2f7a67ff93be9b15844c14da
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