As evident from title, I entered a bug in MantisBT but mistaken choose wrong project. I can go back and edit most of the parameters of bug but it doesn't allow me to change the project. I looked in configuration and there seems to be no option for that there as well. Is there a way I fix the bug information by changing the project to the correct value?
You can move issues between projects if your system configuration and access levels allow it (look for the Move button in the View Issue Details page)