fix: select default value not properly set

refs #592

src/app/formulaire/elements/select/select-field.ts

@@ -149,18 +149,20 @@ export abstract class SelectField extends Field {
                 if (val === undefined) {
                     throw Error("invalid select default value " + value + " for " + this._associatedProperty + " property");
                 }
-            } else if (this.nub !== undefined) {
-                val = this.getEntryFromValue(this.nub.getPropValue(this._associatedProperty));
-                if (val === undefined) {
-                    throw Error("invalid select default value for " + this._associatedProperty + " property");
+            } else {
+                if (this.nub !== undefined) {
+                    val = this.getEntryFromValue(this.nub.getPropValue(this._associatedProperty));
+                    // nub may not have "this._associatedProperty" as a property
+                }
+                if (val === undefined && this._configDefaultValue !== undefined) {
+                    val = this.getEntryFromValue(enumValueFromString(this._associatedProperty, this._configDefaultValue));
+                    if (val === undefined) {
+                        throw Error("invalid select default value " + this._configDefaultValue + " for " + this._associatedProperty + " property");
+                    }
                 }
-            } else if (this._configDefaultValue !== undefined) {
-                val = this.getEntryFromValue(enumValueFromString(this._associatedProperty, this._configDefaultValue));
                 if (val === undefined) {
-                    throw Error("invalid select default value " + this._configDefaultValue + " for " + this._associatedProperty + " property");
+                    val = this._entries[0];
                 }
-            } else {
-                val = this._entries[0];
             }
 
             if (this._multiple) {