is it normal that set -x unset commands dont display special chars in the content

[Alex fxmbsw7 Ratchev]

but they get unset right, just doesnt display em

i have stuff with $'\34' separator and in set -x output the text is just
flat for the unset

+ unset 'dat[kwmetest]' 'dat[1kw1]' 'dat[1take]' 'dat[1code]'

code includes

minuskws_p1=$nspace$SUBSEP$minuskws_id$SUBSEP \
minuskws_p2=$nspace${SUBSEP}kw$SUBSEP