How to reproduce:
1. Create a new project
2. Install the Memory Profiler package
3. Open the Memory Profiler Window (Window -> Analysis -> Memory Profiler)
4. Take an Editor snapshot
5. Try to select the snapshot's text and use "ctrl + c" keyboard shortcut to copy the file name to clipboard
6. Try to paste it elsewhere and observe that the text wasn't copied

Expected result: the text is selectable, highlighted and is able to be copied or edited
Actual result: the text is selectable but cannot be copied or edited

Reproduced in: 2019.3.0a7, 2019.2.0b7, 2019.1.8f1, 2018.4.3f1 (With Memory Profiler version: 0.1.0-preview.6)
Couldn't test with: 2017.4.28f1