Fixed #329 - categories "NONE" and "REST" deletable after edit

src/main/java/de/deadlocker8/budgetmaster/controller/CategoryController.java

@@ -127,8 +127,11 @@ public class CategoryController
 			return "categories/newCategory";
 		}
 		else
+		{
+			if(category.getType() == null)
 			{
 				category.setType(CategoryType.CUSTOM);
+			}
 			categoryRepository.save(category);
 		}
 

src/main/resources/templates/categories/newCategory.ftl

@@ -21,6 +21,7 @@
                     <form name="NewCategory" action="/categories/newCategory" method="post">
                         <input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/>
                         <input type="hidden" name="ID" value="<#if category.getID()??>${category.getID()}</#if>">
+                        <input type="hidden" name="type" value="<#if category.getType()??>${category.getType()}</#if>">
 
                     <#-- name -->
                         <div class="row">