Force quiver to attempt to use the exact same item in inventory (slot

and all, if it still exists) before accepting any item that happens to have the same properties (base + subtype, plusses etc.)

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@6220 c06c8d41-db1a-0410-9941-cceddc491573

Created by  j-p-e-g  on June 29, 2008
EPA5CK2JX4C7FXYCCA2VX3JPLUEYQYYQJYVA37AFNFBIL7JAAGAAC
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