Bug 19000 explains what I think has happened here. And though it talks about
ntfs resizing, the partition start shifting issue is filesystem and even
resizing independent and fairly often happens with any distros using libparted
based partitioners since the end of 2003. The situation was improved last summer
significantly but still not fully fixed. This may be a libparted or a libparted
usage bug.
Bug 19000 explains what I think has happened here. And though it talks about
ntfs resizing, the partition start shifting issue is filesystem and even
resizing independent and fairly often happens with any distros using libparted
based partitioners since the end of 2003. The situation was improved last summer
significantly but still not fully fixed. This may be a libparted or a libparted
usage bug.