Mashing restart+back when in practice mode breaks practice logic in some cases

[poco0317]

basically just causes a desync in lua vs c++

steps:

• turn on practice mode
• pick a song, go into gameplay
• at any point, press restart and 0-1 frames later press escape, so that the gameplay restarts and goes into ScreenStageInformation (the hidden screen before gameplay) but quits into ScreenSelectMusic next
• at this point, you are in ScreenSelectMusic
• go to the title screen
• go back to select music
• pick a song without doing anything else
• you are in "practice" mode with practice mode off

[poco0317]

05588d1a62470e6f379ef0d8102c45a69c9c9a73