[skillmap] "Reset All" while signed in picks up local progress after page refresh

[eanders-ms]

Repro steps:

• navigate to beginner skillmap in stable channel
• ensure no local progress (reset if necessary)
• ensure no cloud progress (sign in and reset if necessary)
• ensure signed out
• start an activity, then return to the home screen
• sign in
• notice the activity is transferred to the cloud
• while signed in, start another activity, then return to home screen
• from the gear menu, choose "Reset All"
• notice your skillmap is reset (as expected)
• refresh the page
• notice your skillmap is repopulated with the local progress

Expected: Your signed-in progress would remain empty, and not re-transfer local state to cloud.