Don't spam chat when a different type of vector is given to the Selector.

src/main/java/com/sk89q/worldedit/regions/CuboidRegionSelector.java

@@ -80,7 +80,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
     }
 
     public boolean selectPrimary(Vector pos) {
-        if (pos.equals(pos1)) {
+        if (pos1 != null && (pos.compareTo(pos1) == 0)) {
             return false;
         }
 
@@ -90,7 +90,7 @@ public class CuboidRegionSelector implements RegionSelector, CUIRegion {
     }
 
     public boolean selectSecondary(Vector pos) {
-        if (pos.equals(pos2)) {
+        if (pos2 != null && (pos.compareTo(pos2)) == 0) {
             return false;
         }
 

src/main/java/com/sk89q/worldedit/regions/CylinderRegionSelector.java

@@ -90,7 +90,7 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
     }
 
     public boolean selectPrimary(Vector pos) {
-        if (!region.getCenter().equals(new Vector(0, 0, 0)) && pos.equals(region.getCenter())) {
+        if (!region.getCenter().equals(new Vector(0, 0, 0)) && pos.compareTo(region.getCenter()) == 0) {
             return false;
         }
 
@@ -103,7 +103,7 @@ public class CylinderRegionSelector implements RegionSelector, CUIRegion {
 
     public boolean selectSecondary(Vector pos) {
         Vector center = region.getCenter();
-        if (center.equals(new Vector(0, 0, 0))) {
+        if ((center.compareTo(new Vector(0, 0, 0))) == 0) {
             return true;
         }
 

src/main/java/com/sk89q/worldedit/regions/ExtendingCuboidRegionSelector.java

@@ -58,7 +58,7 @@ public class ExtendingCuboidRegionSelector extends CuboidRegionSelector {
 
     @Override
     public boolean selectPrimary(Vector pos) {
-        if (pos.equals(pos1) && pos.equals(pos2)) {
+        if (pos1 != null && pos2 != null && pos.compareTo(pos1) == 0 && pos.compareTo(pos2) == 0) {
             return false;
         }