How to reproduce:
1. Create a new Unity project
2. Import the Addressables package
3. Open the Addressables Groups window and create a new group
4. Rename the group to something containing a dot character(e.g. 'abc.def')

Expected result: the renamed group appears as expected in the Addressables Groups window and the Project window
Actual result: text after the dot character is cut off in the Addressables Groups window, but is correct in the Project window

Reproducible with: 2019.4.4f1, 2020.1.0b16, 2020.2.0a18(Addressables 1.1.10, 1.11.2)
Not reproducible with: 2018.4.25f1(Addressables 1.1.10, 1.11.2)

Notes:
The issue is only present in the Addressable groups window - the group Asset can be found renamed correctly in the Project window
Renaming the group for the second time renames it correctly, but the Asset in the Project window now contains additional text after the dot character