That is not true. The people who contributed the original Shunway code own the copyright to it. They are choosing to license it under Apache. You cannot change that since you do not own the copyright.
They may choose to "relicense" it under GPL if all the contributed agree.
What you suggest cannot legally be done. However, Apache is GPL compatible, so it can still be used in a GPL project, though its license will not change.
They may choose to "relicense" it under GPL if all the contributed agree.
What you suggest cannot legally be done. However, Apache is GPL compatible, so it can still be used in a GPL project, though its license will not change.
IANAL