while MF_JUST_SUMMONED is still set, so handle polymorphing just-placed shifters slightly differently.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@8695 c06c8d41-db1a-0410-9941-cceddc491573
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// Messaging. If the monster was just now summoned it's being
// polymorphed as it's being placed, so the player doesn't see it.
bool can_see = you.can_see(monster) && !just_summoned;