Selection lost on update if dtsSelectItem is assigned a value

[lemmywrap]

As far as I understand, I can either do: <mat-card [dtsSelectItem]> or the following: <mat-card [dtsSelectItem]="document.id">

When using the latter however, I have noticed that when the items are updated, the selection is reset.

To reproduce, see the following stackblitz

• In both containers, select Document 1
• Click the update items button
• Notice that the second selection will be cleared.
• Afterwards it's also no longer possible to select Document 1 by dragging in the second select-container.

Problem is caused here, I think: https://github.com/d3lm/ngx-drag-to-select/blob/4b12a79d381547ed3ca046d958cb4b1633d535f9/projects/ngx-drag-to-select/src/lib/select-container.component.ts#L347

selectedItems will be of type number[], while newList is of type SelectItemDirective[].

[d3lm]

Thanks for reporting this issue. I am not sure if I have the capacity to look into this right now. Would you be down to fix this and submit a PR?