History of question #812477
| When | Who | Action | New State |
|---|---|---|---|
| Olivier Mattelaer | Answer | Answered | |
| Shaoqiu Chen | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| Shaoqiu Chen | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| Shaoqiu Chen | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered |
