Fix setCustomName

src/main/java/me/libraryaddict/disguise/disguisetypes/Disguise.java

@@ -117,6 +117,10 @@ public abstract class Disguise {
     }
 
     public void setMultiName(String... name) {
+        if (name.length == 1 && name[0].isEmpty()) {
+            name = new String[0];
+        }
+
         name = DisguiseUtilities.reverse(name);
 
         String[] oldName = multiName;

src/main/java/me/libraryaddict/disguise/disguisetypes/FlagWatcher.java

@@ -256,7 +256,12 @@ public class FlagWatcher {
     }
 
     public String getCustomName() {
-        if (DisguiseConfig.isOverrideCustomNames() && DisguiseConfig.isArmorstandsName()) {
+        if (!getDisguise().isPlayerDisguise() && DisguiseConfig.isOverrideCustomNames() &&
+                DisguiseConfig.isArmorstandsName()) {
+            if (getDisguise().getMultiNameLength() == 0) {
+                return null;
+            }
+
             return StringUtils.join(getDisguise().getMultiName(), "\n");
         }
 
@@ -276,7 +281,8 @@ public class FlagWatcher {
     }
 
     public void setCustomName(String name) {
-        if (DisguiseConfig.isArmorstandsName() && DisguiseConfig.isOverrideCustomNames()) {
+        if (!getDisguise().isPlayerDisguise() && DisguiseConfig.isArmorstandsName() &&
+                DisguiseConfig.isOverrideCustomNames()) {
             if (NmsVersion.v1_13.isSupported()) {
                 if (!hasValue(MetaIndex.ENTITY_CUSTOM_NAME)) {
                     setData(MetaIndex.ENTITY_CUSTOM_NAME, Optional.empty());
@@ -289,7 +295,7 @@ public class FlagWatcher {
                 }
             }
 
-            if (name == null) {
+            if (Strings.isNullOrEmpty(name)) {
                 getDisguise().setMultiName();
             } else {
                 getDisguise().setMultiName(DisguiseUtilities.splitNewLine(name));

src/main/java/me/libraryaddict/disguise/utilities/parser/DisguiseParser.java

@@ -217,18 +217,22 @@ public class DisguiseParser {
     }
 
     private static void addWatcherDefault(Method setMethod, Method getMethod, Object object) {
-        Map.Entry<Method, Object> entry = new HashMap.SimpleEntry<>(getMethod, object);
 
         if (defaultWatcherValues.containsKey(setMethod)) {
-            Object dObj = defaultWatcherValues.get(setMethod);
+            Object dObj = defaultWatcherValues.get(setMethod).getValue();
 
-            if (!Objects.deepEquals(defaultWatcherValues.get(setMethod).getValue(), object)) {
-                throw new IllegalStateException(String.format("%s has conflicting values!", setMethod.getName()));
+            if (!Objects.deepEquals(dObj, object)) {
+                throw new IllegalStateException(String.format(
+                        "%s has conflicting values! This means it expected the same value again but received a " +
+                                "different value on a different disguise! %s is not the same as %s!", setMethod.getName(), object,
+                        dObj));
             }
 
             return;
         }
 
+        Map.Entry<Method, Object> entry = new HashMap.SimpleEntry<>(getMethod, object);
+
         defaultWatcherValues.put(setMethod, entry);
     }