Empty the entire block_index queue when planned moves are aborted

src/modules/pulse_gen.cpp

@@ -160,10 +160,12 @@ void PulseGen::AbortPlannedMoves(bool halt) {
     if (current_block) {
         last_rate = acc_step_rate;
         current_block = nullptr;
-        while (!block_index.empty()) // drop all remaining blocks
-            block_index.pop();
     }
 
+    // drop all remaining blocks
+    while (!block_index.empty())
+        block_index.pop();
+
     // truncate the last rate if halting
     if (halt)
         last_rate = 0;