Non-user generated inputs on startup

[OaHolroyd]

Sometimes (but not always!) when I run my notcurses program it receives a bunch of garbage input right at the start, for instance:

src/tui.c:1251: KEY PRESSED: 27 [�]
src/tui.c:1251: KEY PRESSED: 93 []]
src/tui.c:1251: KEY PRESSED: 52 [4]
src/tui.c:1251: KEY PRESSED: 59 [;]
src/tui.c:1251: KEY PRESSED: 52 [4]
src/tui.c:1251: KEY PRESSED: 56 [8]
src/tui.c:1251: KEY PRESSED: 59 [;]
src/tui.c:1251: KEY PRESSED: 114 [r]
src/tui.c:1251: KEY PRESSED: 103 [g]
src/tui.c:1251: KEY PRESSED: 98 [b]
src/tui.c:1251: KEY PRESSED: 58 [:]
src/tui.c:1251: KEY PRESSED: 48 [0]
src/tui.c:1251: KEY PRESSED: 52 [4]
src/tui.c:1251: KEY PRESSED: 48 [0]
src/tui.c:1251: KEY PRESSED: 56 [8]
src/tui.c:1251: KEY PRESSED: 47 [/]
src/tui.c:1251: KEY PRESSED: 102 [f]
src/tui.c:1251: KEY PRESSED: 98 [b]
src/tui.c:1251: KEY PRESSED: 48 [0]
src/tui.c:1251: KEY PRESSED: 56 [8]
src/tui.c:1251: KEY PRESSED: 47 [/]
src/tui.c:1251: KEY PRESSED: 56 [8]
src/tui.c:1251: KEY PRESSED: 55 [7]
src/tui.c:1251: KEY PRESSED: 56 [8]
src/tui.c:1251: KEY PRESSED: 98 [b]
src/tui.c:1251: KEY PRESSED: 71 [G]

Currently I'm trying to get around it by calling notcurses_getvec(nc, &ts, ncinputs, len) at the top of the input/action loop to gobble the garbage inputs, but this sometimes (but not always!) hangs somewhere in internal_get.

I'm not sure if this is a notcurses issue or something higher up the chain.

Term/notcurses details:

notcurses 3.0.9 on iTerm2 3.4.20 (macOS 12.6.7)

COLORTERM=truecolor
ITERM_PROFILE=Default
ITERM_SESSION_ID=w1t0p0:FFFFE119-7EC6-4B5A-B390-4D016FFA88FE
LANG=en_GB.UTF-8
LC_TERMINAL=iTerm2
LC_TERMINAL_VERSION=3.4.20
TERM=xterm-256color
TERM_PROGRAM=iTerm.app
TERM_PROGRAM_VERSION=3.4.20
TERM_SESSION_ID=w1t0p0:FFFFE119-7EC6-4B5A-B390-4D016FFA88FE