Fix wrong daterange on hover bug

[lucyyu24]

Types of changes

What types of changes does your code introduce?

Put an x in the boxes that apply

• [x] Bugfix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Description

Fixed wrong daterange on hover bug by processing value through calcNewSelection before feeding into updatePreview. Used typeof value === "string" to determine whether the isSingleValue.

Related Issue: #368

[ayxos]

Can this be merged?

[burakcan]

thank you @lucyyu24

[adamstorr]

Thanks for getting this in! When can we expect this to be released?

[burakcan]

@adamstorr I will publish a new version including this and some other fixes this week.