In [48306] support for multi-typed schemas was improved to first detect the data type of the value before applying further validation. The `integer` data type was detected using the new `rest_is_integer` function. This function used logic, however, that assumed that the value had already passed an `is_numeric` check. This meant that if `integer` and `string` were both acceptable types, the value would always be considered an `integer` causing the later accurate type validation to fail.
This commit fixes the `rest_is_integer` logic to include an `is_numeric` check.
Props rtagliento.
Fixes#51146.
git-svn-id: https://develop.svn.wordpress.org/trunk@48881 602fd350-edb4-49c9-b593-d223f7449a82
6c76a13139