When morph a unit within attack-boost range, the morphed unit will gain no boosts, furthermore, if move the unit out of the boost skill range, the unit will gain "minus" boosts.
For example, I made a priest unit to have +5 hp-regeneration boost for units within a range. and put a unit within the range.
[url=http://imageshack.us/photo/my-images/145/screen2rt.png/][img]https://imageshack.us/a/img145/425/screen2rt.th.png[/img][/url]
The peasant unit gains +5 hp-regen. then next, morph the peasant.
[url=http://imageshack.us/photo/my-images/846/screen3gk.png/][img]https://imageshack.us/a/img846/975/screen3gk.th.png[/img][/url]
The morphed unit doesn't gain hp-regen boosts that should have gain. then next, move the unit out of the boost-skill range.
[url=http://imageshack.us/photo/my-images/607/screen4h.png/][img]https://imageshack.us/a/img607/9467/screen4h.th.png[/img][/url]
The unit gains "minus"5 hp-regen.
ps. for softcoder, thank you for sending me message about translation. I'm sorry I didn't notice your message till now. I will get to update the Japanese translation.