File operation progress does not complete properly
When copying files, a progress indicator button appears in the toolbar (round "cake" diagram). It also opens a popover that lists all file operations with a progress bar each.
Unfortunately the popover 1) covers a huge part of the window, 2) it is opened on all nautilus windows on all workspaces, 3) the progress popover does not close on its own when the operations are completed (circle diagram shows full, but does not disappear) and 4) the unity launcher icon and alt-tab switcher continue displaying the full progress bar.
Furthermore, the unconscious need to remove what covers your sight seduces the user to click the nearest "X" to close the popover. However, the "X" aborts file operations leading to corrupted, incompletely copied files. The correct way is to toggle the progress button. However, the toggle-off action is unintuitive because the user did not manually toggle it on.
Popover window opens when the user clicks the progress indicator button, and it only opens on the current workspace. After file operations complete, it closes on its own and the progress bar on the launcher icon disappears.
Popover window opens on all nautilus windows. After file operations complete, they do not close.