Theory

Only consonants of words or full words that are destroyed or partially destroyed are allowed to be put into brackets “[ ]” / “⸢ ⸣“ if signs representing the consonants are intrinsically part of the writing. This means that the consonants that are complements of fully existing ideograms should not be surrounded by brackets. If a word is partially destroyed but is still fully readable (that happens if a determinative or a complement is destroyed, but the word is clearly written) then there is no need for a bracket.