This results in being unable to write editor commands corresponding to activating those actions through context menu

Steps to reproduce:
1. Download and open the attached project
2. Right-Click-->Duplicate on any GameObject in the hierarchy view
3. Observe no console log
4. Select any GameObject
5. Press CTRL+D on the keyboard
6. Log is outputted

Expected result:
Log:
1. ExecuteCommand ExecuteCommand
2. Copy was made... (GameObject name) (UnityEngine.GameObject)
Actual result:
1. Copy was made... (GameObject name) (UnityEngine.GameObject)

Reproduced on 5.2.3f1. 5.3.7p2, 5.4.1f1, 5.4.3p1, 5.5.0f1, 5.6.0a3

Notes:
-In the project there is an editor script that outputs a debug log if an appropriate command is executed
-Paste and delete also do not work
-Keyboard shortcuts work normally, output logs in this environment as they should
-Currently "Duplicate" is set up to output a separate log from other commands, but commenting it results in CTRL+D outputting "ExecuteCommand ExecuteCommand"