Finding in /ip arp by DHCP flag don't work

In RouterOS 6.35.2 find by DHCP flag in /ip arp don’t work.
It looks as if DHCP keyword is not recognized (printed in red color), but after pressing TAB, there is keyword DHCP in help:


/ip arp> :put [find <TAB>
.dead  .nextid  address  complete  dynamic    invalid      published
.id    DHCP     comment  disabled  interface  mac-address  where

/ip arp> :put [find DHCP=yes]

Command returns no result. There are records with DHCP flag set - for example:

/ip arp> :put [get *3093]

.id=*3093;DHCP=true;address=10.12.84.80;complete=true;disabled=false;dynamic=true;interface=xxx;invalid=false;mac-address=xxx;published=false

Find by dynamic flag (for example) works correct (returns many results). Find by dhcp (lowercase) is not recognized too (and returns nothing). Same (no) results after replacing yes value to true (DHCP=true or dhcp=true).

In RouterOS 5.26 DHCP flag in find command is red too, but it returns results. There is just cosmetic problem.

Is it bug or I do something wrong?

Thanks.

Greetings.
For those who still stuck on this.
It doesn’t work as “/ip arp find where DHCP=..” even on 6.49 in 2021.

Solution: just add “$”
/ip arp find where $DHCP=..” works fine