[Bug] MultiSelect Default Value return value is not string.

[hiteshjoshi]

Description

The expected structure of multi select values are Array<{ "label": "string", "value": "string" }> and if we do INT and FLOAT on the value part the widget automatically converts it to string.
The same is not being followed on Default value. For e.g. if I put INT or FLOAT on default value, it doesn't automatically converts to string.

Behaviour of data type across the widget should have same expected results.

Steps to reproduce the behaviour:

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Important Details

• Version: [Cloud / Self-Hosted vx.x]
• OS: [e.g.MacOSX]
• Browser [e.g. chrome, safari]
• Environment [production, release, deploy preview]

[somangshu]

@Tooluloope @SatishGandham this is happening in case of the select widget too. The widget need to accept both string and int value, This failed because of a change in #7698, We need to make sure how to cover the cases here.

[SatishGandham]

We are reverting the validation changes and continue to support numbers and boolean values.