update kirby

kirby/config/fields/mixins/picker.php

@@ -2,6 +2,7 @@
 
 use Kirby\Toolkit\I18n;
 use Kirby\Toolkit\Str;
+use Kirby\Uuid\Uuids;
 
 return [
 	'props' => [
@@ -75,7 +76,11 @@ return [
 		 * @param string $store 'uuid'|'id'
 		 */
 		'store' => function (string $store = 'uuid') {
-			return Str::lower($store);
+			// fall back to ID, if UUIDs globally disabled
+			return match (Uuids::enabled()) {
+				false   => 'id',
+				default => Str::lower($store)
+			};
 		},
 
 		/**

kirby/config/fields/mixins/upload.php

@@ -23,7 +23,11 @@ return [
 				$uploads = [];
 			}
 
-			$uploads['accept'] = '*';
+			$uploads['accept']  = '*';
+
+			if ($preview = $this->image) {
+				$uploads['preview'] = $preview;
+			}
 
 			if ($template = $uploads['template'] ?? null) {
 				// get parent object for upload target

kirby/config/fields/writer.php

@@ -63,7 +63,14 @@ return [
 	'computed' => [
 		'value' => function () {
 			$value = trim($this->value ?? '');
-			return Sane::sanitize($value, 'html');
+			$value = Sane::sanitize($value, 'html');
+
+			// convert non-breaking spaces to HTML entity
+			// as that's how ProseMirror handles it internally;
+			// will allow comparing saved and current content
+			$value = str_replace(' ', ' ', $value);
+
+			return $value;
 		}
 	],
 	'validations' => [