Test that troll really retuns after we take eggs

tests/troll_returns.log

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+## See that troll returns if we stole eggs from him before crossing
+n
+seed 1838473132
+in
+take lamp
+xyzzy
+on
+take rod
+e
+take cage
+w
+w
+w
+drop rod
+take bird
+take rod
+w
+d
+d
+free bird
+w
+e
+s
+n
+u
+s
+n
+d
+n
+n
+plugh
+extin
+plugh
+on
+s
+s
+sw
+w
+kill
+y
+e
+e
+u
+d
+n
+n
+off
+plugh
+out
+s
+w
+n
+s
+s
+n
+in
+take water
+plugh
+on
+plove
+plove
+s
+s
+u
+w
+wave rod
+west
+w
+w
+w
+s
+s
+e
+s
+kill machi
+s
+s
+n
+s
+w
+n
+n
+n
+nw
+d
+e
+e
+e
+e
+e
+n
+n
+n
+off
+on
+s
+d
+bedqu
+slab
+s
+d
+water plant
+u
+w
+u
+reser
+H'CFL
+n
+n
+take water
+s
+s
+s
+s
+d
+s
+d
+water plant
+u
+e
+d
+g oil
+u
+w
+d
+climb
+w
+n
+oil door
+s
+g
+n
+n
+w
+d
+sw
+u
+toss egg
+fee
+fie
+foe
+foo
+look
+over