Animation Rigging package sample project button text does not change once the project is imported. The package sample project text should change from "Import" to "Import again".

Steps to reproduce:
1) Create a new project
2) Window > Package Manager
3) Install Animation Rigging package
4) Import sample project

Actual result: The sample project button text displays "Import" even after importing the sample project

Expected result: The sample project button text should change to "Import again" once the sample project is imported

Occurring in: 2020.2.0b2, 2020.1.4f1, 2019.4.9f1 with Animation rigging package version 1.0.3, 1.0.2 and 0.2.7 preview

Environment: Both Mac and Windows