These portals to bazaars now leave an empty stone arch behind, just like I've always envisioned it. :) (Labyrinths still disappear completely.)
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@4184 c06c8d41-db1a-0410-9941-cceddc491573
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