From 0cb04b50bfde83001e59cd74da77142b567706d9 Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Fri, 26 Feb 2021 17:35:31 +0100
Subject: Fix #12011 ssreflect "rewrite in" with setoids

ssreflect asks setoid rewrite to rewrite in goal
"forall_special_name_ : T, _other_name_"

Since this is a non dependent product, setoid rewrite converts that to
"impl T _other_name_" and must be taught to restore the special name
when unfolding impl.
---
 doc/changelog/04-tactics/13882-fix-ssr-setoidrw-in-hyp.rst | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 doc/changelog/04-tactics/13882-fix-ssr-setoidrw-in-hyp.rst

(limited to 'doc')

diff --git a/doc/changelog/04-tactics/13882-fix-ssr-setoidrw-in-hyp.rst b/doc/changelog/04-tactics/13882-fix-ssr-setoidrw-in-hyp.rst
new file mode 100644
index 0000000000..31b331f0ff
--- /dev/null
+++ b/doc/changelog/04-tactics/13882-fix-ssr-setoidrw-in-hyp.rst
@@ -0,0 +1,6 @@
+- **Fixed:**
+  Setoid rewriting now remembers the (invisible) binder names of non-dependent product types. SSReflect's rewrite tactic expects these names to be retained when using ``rewrite foo in H``.
+  This also fixes SSR ``rewrite foo in H *`` erroneously reverting ``H``.
+  (`#13882 <https://github.com/coq/coq/pull/13882>`_,
+  fixes `#12011 <https://github.com/coq/coq/issues/12011>`_,
+  by Gaëtan Gilbert).
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