- Tabs should be expanded to spaces before being escaped with backslashes
- Do not double-escape with backslash and ^V. Prefer ^V.

This commit also fixes the tests by adding tab escapes where needed.

Ignore a paste escape sequence with an invalid base64 block. Caused a null pointer dereference. Issue 5578.

Remove the pending window opens counter since there's already an almost identically named set that does the same thing but better.

Allocate a dynamic buffer for screen chars more readily. The estimate of 2*length was not high enough since a double-width character in the right margin occupies three places (dwc-skip, char, dwc-right). The new bound of 3*length is loose but not too low. Issue 5564.

things) to decode text in EPS files on OS 10.10. Issue 5530.

Wait until the initial batch of tmux windows is open before hiding the gateway session. There was a bad interaction between "Open tmux windows as tabs in existing window" and "Automatically hide the tmux client session after connecting" where the gateway window would hide and then immediately unhide when the first tab was added to it.

Don't save affinities when detaching. The affinities get saved just after the windows are closed. See email with subject line "tmux support" 2/2/2017.

Fix crash with out-of-bounds parameters to DECRQCRA (y=0 caused an assertion, and overly large x values would blithely read off the end of the array). Issue 5520

Fix a bug where an interval tree entry on an empty line would be deleted, even if it was one that should tolerate being empty. This happens in practice when you have a remotehost mark on the last line of a fullscreen window and automatic profile switching causes the font size to change. Issue 5465.

Show a bell emoji in the window title when there's only one tab and it would have a bell icon. Issue 5413.

Fix two calls to list-windows that were missing window-flags. This caused us to think that panes were never maximized when resizing a window. Issue 5409

Fix two calls to list-windows that were missing window-flags. This caused us to think that panes were never maximized when resizing a window. Issue 5409

Fix two calls to list-windows that were missing window-flags. This caused us to think that panes were never maximized when resizing a window. Issue 5397

it'd be set to yes after the last initial window is open, but if there were
none then it got stuck as NO. Issue 5359.

When creating a new tab using the default profile when the current tab is a tmux tab, refer to the gateway session's current directory for the purposes of recycling the working directory. Issue 5320

session-closing confirmation, only show the kill/hide confirmation.
However, when closing a window, we still show both because kill/hide
doesn't offer cancel.