[Knockout] A Text field receives an unexpected value after changing the input type

[JaneSjs]

T18022 - Value not reset on change from text->color->text
https://surveyjs.answerdesk.io/internal/ticket/details/T18022

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Please follow these steps to reproduce the issue: Change the input type from Text to Color and then back to Text. The #000000 value appears:

2024-05-03_20-09-05.mp4

[andrewtelnov]

The problem is in knockout. question.koValue() returns an empty array and changing question.koValue() does't seems to change anything. The input continiues to show empty color value.

[tsv2013]

This is the default behavior for an input element. If you change the input type from color to text, the "#000000" color value is a valid string and it will be preserved as an input element value. It seems like framevorks like react, angular and others update value from a virtual dom, but knockoutjs doesn't do it.
We plan to get rid of survey-knockout in V2. On the other hand, this issue doesn't seem critical. That's why we won't fix it right now. I marked it as a known issue. We will keep it open.