clarifies when quick solidification happens

src/main/java/com/iota/iri/service/solidifier/impl/QuickTransactionSolidifier.java

@@ -75,12 +75,16 @@ public void start() {
 
     @Override
     public void solidify() {
-        // we only try to quick solidify transactions when we are not synchronized and below the depth of the
-        // quick solidification parameter
         int latestMilestoneIndex = latestMilestoneTracker.getLatestMilestoneIndex();
         int depth = solidificationConfig.getSolidifierDepth();
-        if (latestMilestoneIndex - depth <= 0
-                || snapshotProvider.getLatestSnapshot().getIndex() < latestMilestoneIndex - depth) {
+
+        // don't solidify if not enough milestones were issued yet
+        if (latestMilestoneIndex - depth <= 0) {
+            return;
+        }
+
+        // we only try to quick solidify transactions when we are above the defined solidification depth
+        if (snapshotProvider.getLatestSnapshot().getIndex() < latestMilestoneIndex - depth) {
             return;
         }