Dashboard Form keep Date

[dereine]

Good day

I have a form in which I can select two dates. Every time I select the file and click "Daten holen" it always deletes the dates out for "von" and "bis". Is there any way to stop this?

[{"id":"9854fc9a940ad36d","type":"ui_form","z":"9f11e0559d57c435","name":"","label":"","group":"4fce8c2af3820dd7","order":1,"width":0,"height":0,"options":[{"label":"von","value":"from","type":"date","required":true,"rows":null},{"label":"bis","value":"to","type":"date","required":true,"rows":null}],"formValue":{"from":"","to":""},"payload":"","submit":"Daten Holen","cancel":"Abbrechen","topic":"form","topicType":"str","splitLayout":true,"className":"","x":110,"y":380,"wires":[["87781a5f878f7276","c5719130b3ee5f97","778a4e5e3f5e2f8f","a058b451deabc41a"]]},{"id":"4fce8c2af3820dd7","type":"ui_group","name":"Teams History","tab":"9bb60f34ca928aab","order":4,"disp":true,"width":"20","collapse":false,"className":""},{"id":"9bb60f34ca928aab","type":"ui_tab","name":"Hauptfenster","icon":"dashboard","disabled":false,"hidden":false}]

Thanks for your help

[E1cid]

Feed the payload back
e.g.

[{"id":"9854fc9a940ad36d","type":"ui_form","z":"366a43adb328cf95","name":"","label":"","group":"4fce8c2af3820dd7","order":1,"width":0,"height":0,"options":[{"label":"von","value":"from","type":"date","required":true,"rows":null},{"label":"bis","value":"to","type":"date","required":true,"rows":null}],"formValue":{"from":"","to":""},"payload":"","submit":"Daten Holen","cancel":"Abbrechen","topic":"form","topicType":"str","splitLayout":true,"className":"","x":270,"y":140,"wires":[["5dd8a908361725cf"]]},{"id":"5dd8a908361725cf","type":"change","z":"366a43adb328cf95","name":"","rules":[],"action":"","property":"","from":"","to":"","reg":false,"x":165,"y":140,"wires":[["9854fc9a940ad36d"]],"l":false},{"id":"4fce8c2af3820dd7","type":"ui_group","name":"Teams History","tab":"9bb60f34ca928aab","order":4,"disp":true,"width":"20","collapse":false,"className":""},{"id":"9bb60f34ca928aab","type":"ui_tab","name":"Hauptfenster","icon":"dashboard","disabled":false,"hidden":false}]