refresh numeric fields on blur (#11027)

CHANGELOG.md

@@ -43,12 +43,14 @@ _Breaking developer changes, which may affect downstream projects or sites that
 #### :camera: Street-Level
 #### :white_check_mark: Validation
 #### :bug: Bugfixes
+* Refresh numeric input fields after leaving focus with the value that is stored in the tag ([#11027])
 #### :earth_asia: Localization
 #### :hourglass: Performance
 #### :mortar_board: Walkthrough / Help
 #### :hammer: Development
 
 [#10970]: https://github.com/openstreetmap/iD/pull/10970
+[#11027]: https://github.com/openstreetmap/iD/pull/11027
 
 
 # v2.34.0

modules/ui/fields/input.js

@@ -414,19 +414,33 @@ export function uiFieldText(field, context) {
             // don't override multiple values with blank string
             if (!val && getVals(_tags).size > 1) return;
 
-            var displayVal = val;
+            let displayVal = val;
             if (field.type === 'number' && val) {
-                var numbers = val.split(';');
-                numbers = numbers.map(function(v) {
+                const numbers = val.split(';').map(v => {
                     if (likelyRawNumberFormat.test(v)) {
                         // input number likely in "raw" format
-                        return v;
+                        return {
+                            v,
+                            num: parseFloat(v),
+                            fractionDigits: v.includes('.') ? v.split('.')[1].length : 0
+                        };
+                    } else {
+                        // try to parse in localized number format
+                        return {
+                            v,
+                            num: parseLocaleFloat(v),
+                            fractionDigits: countDecimalPlaces(v)
+                        };
                     }
-                    var num = parseLocaleFloat(v);
-                    const fractionDigits = countDecimalPlaces(v);
-                    return isFinite(num) ? clamped(num).toFixed(fractionDigits) : v;
                 });
-                val = numbers.join(';');
+                val = numbers.map(({num, v, fractionDigits}) => {
+                    if (!isFinite(num)) return v;
+                    return clamped(num).toFixed(fractionDigits);
+                }).join(';');
+                displayVal = numbers.map(({num, v, fractionDigits}) => {
+                    if (!isFinite(num)) return v;
+                    return formatFloat(clamped(num), fractionDigits);
+                }).join(';');
             }
             if (!onInput) utilGetSetValue(input, displayVal);
             t[field.key] = val || undefined;