.

wcfs/internal/xbtree/treediff.go

@@ -675,8 +675,11 @@ ABcov:
 							if nc := at.nchild; nc != 0 {
 								δtrack.δnchildNonLeafs[acOid] = nc
 								// XXX debugDiff δtrack [) ...
-							} else {
+							}
+						}
+
 						// adjust δtkeycov only if it was leaf bucket
+						if nc := at.nchild; nc == 0 {
 							ar := KeyRange{ac.lo, ac.hi_}
 							bc := Bv.Get(ac.lo)
 							br := KeyRange{bc.lo, bc.hi_}
@@ -685,7 +688,6 @@ ABcov:
 							debugfDiff("  δtrack - %s %v KKK\n", ar, apath)
 							debugfDiff("  δtrack + %s %v KKK\n", br, bpath)
 						}
-						}
 
 						continue
 					}

wcfs/internal/xbtree/δbtail_test.go

@@ -679,7 +679,7 @@ func xverifyΔBTail_Update(t *testing.T, subj string, db *zodb.DB, treeRoot zodb
 // tracked state defined by initialTrackedKeys.
 func xverifyΔBTail_Update1(t *testing.T, subj string, db *zodb.DB, treeRoot zodb.Oid, at1,at2 zodb.Tid, xkv1,xkv2 RBucketSet, δZ *zodb.EventCommit, d12 map[Key]Δstring, initialTrackedKeys SetKey, kadj KAdjMatrix) {
 	X := exc.Raiseif
-	t.Logf("\n>>> Track=%s\n", initialTrackedKeys)
+//	t.Logf("\n>>> Track=%s\n", initialTrackedKeys)
 
 	var TrackedδZ SetKey = nil
 	var kadjTrackedδZ SetKey = nil