MMAPV1Journal lock counts are changing during WT run

Not sure if this is a mislabeling or wrong counters being incremented, but running a WT test, I see this in serverStatus:

		"MMAPV1Journal" : {

			"acquireCount" : {

				"r" : NumberLong(8),

				"w" : NumberLong(28760)

			}

		},

I see it in server status outputs going back to pre rc9, but until this run I've never seen it go up.