In the Sandbox, in order to close 256 issues, I created in my workflow a new status from All, and from that status a transition to the regular completed status.
In a bulk edit, I transitioned the issues to the new status, and in another bulk edit, transitioned the issues to the regular completed status.
In each bulk edit, I had to click Confirm twice. In both edits, the second Confirm did not display the option to send emails. In each of the first edits, the reported number of issues was 256. In the second edits, the reported number of issues was 740 and 742, respectively. The 2-issue discrepancy in the reported number of issues doesn't seem like a concern, but why the jump from 256 to 740?