j2ee web project deployed in tomcat can't update

in a tomcat deployed web module， copy 3.html and rename as 4.html. Either restart or stop-start 4.html will not be deployed in the ouput path. have to copy 4.html into the output path。

restart or stop-start tomcat won't work unless copy 4.html into the output path。it means IDEA 2019 won't update the resources which copy and rename from the original one. 

IDEA 2017 & 2018 does not have the problem.