fix: all use closest candidate when moving disconnected blocks (#9971)

* fix: all use closest candidate when moving disconnected blocks

* fix: update move commands in test

Author: mikeharv

packages/blockly/core/dragging/block_drag_strategy.ts

@@ -1023,12 +1023,14 @@ export class BlockDragStrategy implements IDragStrategy {
     if (forwardTraversal) {
       if (currentPairIndex === -1) {
         const terminal = this.isInTerminalPosition(this.block, Direction.DOWN);
-        if (navigator.getNavigationLoops()) {
-          return this.pairToCandidate(pairs[0]);
-        } else if (!terminal) {
-          return this.getClosestCandidate(this.block, delta);
+        if (terminal) {
+          if (navigator.getNavigationLoops()) {
+            return this.pairToCandidate(pairs[0]);
+          } else {
+            return null;
+          }
         }
-        return null;
+        return this.getClosestCandidate(this.block, delta);
       } else if (currentPairIndex === pairs.length - 1) {
         return null;
       } else {
@@ -1037,12 +1039,14 @@ export class BlockDragStrategy implements IDragStrategy {
     } else {
       if (currentPairIndex === -1) {
         const terminal = this.isInTerminalPosition(this.block, Direction.UP);
-        if (navigator.getNavigationLoops()) {
-          return this.pairToCandidate(pairs[pairs.length - 1]);
-        } else if (!terminal) {
-          return this.getClosestCandidate(this.block, delta);
+        if (terminal) {
+          if (navigator.getNavigationLoops()) {
+            return this.pairToCandidate(pairs[pairs.length - 1]);
+          } else {
+            return null;
+          }
         }
-        return null;
+        return this.getClosestCandidate(this.block, delta);
       } else if (currentPairIndex === 0) {
         return null;
       } else {

packages/blockly/tests/mocha/keyboard_movement_test.js

@@ -1282,7 +1282,6 @@ suite('Keyboard-driven movement', function () {
 
         Blockly.getFocusManager().focusNode(loop);
         startMove(this.workspace);
-        moveRight(this.workspace);
         this.clock.tick(10);
 
         this.moveAndAssert(