Save the stats to cache after initializing the error estimators the first time, so that the old estimate doesn't get added again.
Save the stats to cache after initializing the error estimators the first time, so that the old estimate doesn't get added again.

brettdh/libcmm,brettdh/libcmm,brettdh/libcmm,brettdh/libcmm,brettdh/libcmm