Add missing history uniqueness test
Add missing history uniqueness test

akarki15/pgweb,adamjaso/pgweb,akarki15/pgweb,sosedoff/pgweb,sosedoff/pgweb,adamjaso/pgweb,akarki15/pgweb,adamjaso/pgweb,adamjaso/pgweb,sosedoff/pgweb,akarki15/pgweb,sosedoff/pgweb