Resolved a race condition of state trie dereference logic.
Prevented dereference during commit and reference of the trie node cache.
Miscellaneous
RC RPM publish / RC binary link to PR comment (#581)
Added a job to publish RPM when it comes to RC. You can install/upgrade to RC version much easier than before.
From now on, you can now download RC version binary from the link described in the comment for every release PR.
Upgraded Golang version to v1.14.6 (#582)
Included fixes to the go command, the compiler, the linker, vet, and the database/sql, encoding/json, net/http, reflect, and testing packages. (https://golang.org/doc/devel/release.html)