Fix monster hide state when chain is moved

diff --git a/src/ball.c b/src/ball.c
index 60099a83b623e997a67dd7f25027c71d01144615..6eeafe6fa9a8c3cdfe5089c384f636eec9eb88ba 100644 (file)
--- a/src/ball.c
+++ b/src/ball.c
@@ -168,6 +168,7 @@ unplacebc_core()
     obj_extract_self(uchain);
     if (Blind && (u.bc_felt & BC_CHAIN)) /* drop glyph */
         levl[uchain->ox][uchain->oy].glyph = u.cglyph;
+    maybe_unhide_at(uchain->ox, uchain->oy);
 
     newsym(uchain->ox, uchain->oy);
     u.bc_felt = 0; /* feel nothing */