From d8214735b946bfa283c6fe5a7fc541054abd86dc Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Mon, 12 Dec 2022 14:53:59 -0500
Subject: [PATCH] Add bugfix nooz

---
 nooz/344.bugfix.rst | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 nooz/344.bugfix.rst

diff --git a/nooz/344.bugfix.rst b/nooz/344.bugfix.rst
new file mode 100644
index 0000000..997ee77
--- /dev/null
+++ b/nooz/344.bugfix.rst
@@ -0,0 +1,11 @@
+Always ``list``-cast the ``mngrs`` input to
+``.trionics.gather_contexts()`` and ensure its size otherwise raise
+a ``ValueError``.
+
+Turns out that trying to pass an inline-style generator comprehension
+doesn't seem to work inside the ``async with`` expression? Further, in
+such a case we can get a hang waiting on the all-entered event
+completion when the internal mngrs iteration is a noop. Instead we
+always greedily check a size and error on empty input; the lazy
+iteration of a generator input is not beneficial anyway since we're
+entering all manager instances in concurrent tasks.