[Grid] Validations now working when there is a dot (".") in field property

[ddidgdimitrov-infragistics]

Description

Validations now working when there is a dot (".") in field property

• igniteui-angular version: 19.2
• browser: Chrome

Steps to reproduce

1. Create a grid
2. Add a column
3. Add validation, for example minlength
4. Add field property with a "." in the value, doesn't matter if it's a real one

Result

The validation is not working

Expected result

Validation should be working

Attachments

Attach a sample if available, and screenshots, if applicable.

<igx-grid [data]="northwindSwaggerEmployeeDto" primaryKey="employeeId" [allowFiltering]="true" filterMode="excelStyleFilter" class="grid" rowEditable="true">
  <igx-column field="title" dataType="string" header="title" [filterable]="true" [minlength]="5" [sortable]="true" [maxlength]="10" [selectable]="false"></igx-column>
  <igx-column field="address.street" dataType="string" header="addressstreet" [filterable]="true" [sortable]="true" [minlength]="5" [maxlength]="10" [selectable]="false"></igx-column>
  <igx-column field="test.1" dataType="string" header="test1" [filterable]="true" [sortable]="true" [minlength]="5" [maxlength]="10" [selectable]="false"></igx-column>
  <igx-column field="test2"  dataType="string" header="test2" [filterable]="true" [sortable]="true" [minlength]="5" [maxlength]="10" [selectable]="false"></igx-column>
</igx-grid>