Bug nominations are for backporting a released fix into previous releases through a "Stable Release Update". Since all valid bugs are candidates to be fixed in the current development release, there is no need to nominate for it. Moreover, if you assign the bug to yourself, you are signaling that you are taking care of the bug so that no other developers need to look at it. If you are interested in more information, https://wiki.ubuntu.com/UbuntuDevelopment is a good starting point.
Bug nominations are for backporting a released fix into previous releases through a "Stable Release Update". Since all valid bugs are candidates to be fixed in the current development release, there is no need to nominate for it. Moreover, if you assign the bug to yourself, you are signaling that you are taking care of the bug so that no other developers need to look at it. If you are interested in more information, https:/ /wiki.ubuntu. com/UbuntuDevel opment is a good starting point.