master<-trunk

[hisahi]

Short description

• 1082: The grade in final review should be 0-5 instead of 1-5

• 1007: Tag names should be unique

• #1025: refactoring, optimization (in a later PR?)

DoD

I have:

• [x] added actual code.
• [x] produced clean code that passes ESLint.
• [x] code that actually does what it should.
• [x] documented the code or added documentation to the wiki.
• [x] added or modified test(s).
• [x] test(s) that actually pass.
• [x] works in trunk branch