Finishing the runtime fixes started on r5420, the exact same thing, but this time on disposal bins.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5429 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/recycling/disposal.dm

@@ -397,7 +397,6 @@
 		if(wrapcheck == 1)
 			H.tomail = 1
 
-		H.init(src)	// copy the contents of disposer to holder
 
 		air_contents = new()		// new empty gas resv.
 
@@ -408,6 +407,8 @@
 		sleep(5) // wait for animation to finish
 
 
+		H.init(src)	// copy the contents of disposer to holder
+
 		H.start(src) // start the holder processing movement
 		flushing = 0
 		// now reset disposal state