Fix: change cable with the same material voltage but different Amperage

src/main/java/gregtech/api/metatileentity/implementations/MTECable.java

@@ -281,7 +281,7 @@ public boolean onRightclick(IGregTechTileEntity aBaseMetaTileEntity, EntityPlaye
 
             // Prevent replacing with same cable type
             if (this.getClass() == handCable.getClass() && this.mMaterial == handCable.mMaterial
-                && this.mVoltage == handCable.mVoltage) {
+                && this.mVoltage == handCable.mVoltage && this.mAmperage == handCable.mAmperage) {
                 return false;
             }
             short oldMetaID = (short) aBaseMetaTileEntity.getMetaTileID();