When filling list of items to send to other base, it is ok, when you use only numeric scrollbuttons - when you added all, increasing button is deactivated.
But another way - clicking item name - is not so safe. When all is added, it is not blocked. One subsequent click will make number of remaining items (which now should zero) to disappear (it would really disaplay -1, but doesn't). Beging with -2 and lower, number again becomes visible.

I don't know, what will happen if i try to send it :)
just never tried (even today, after tryng with fresh installation, i just forgot to try that too)

Installed version - fetched nearly at May 8.