Let's be clear about this, I think it is like the following:
April 12 - WSJ#20 - Chapter - Spoiler on April 9
April 19 - Break (Coronavirus) - No spoiler
April 26 - WSJ#21/22 - Chapter (double issue) - Spoiler on April 23
May 03 - Break (Golden Week) - No spoiler
May 10 - WSJ#23/24 - Chapter (double issue) - Spoiler on April 6/7
This is based on the assumption that WSJ#22 (originally to be published on April 26/27) would be Oda break week.
Note: I don't mean that the OP chapter will be a double issue, rather WSJ will be a double issue.