51001: Reverts 8839e969b, most of 1ba8714a, and d873ed60.

Also correct ChangeLog

ChangeLog

@@ -31,20 +31,13 @@
 
 2022-11-09  Bart Schaefer  <schaefer@zsh.org>
 
-	* 50929: Src/exec.c: fix handling of ERR_RETURN bent by 50928.
-
-	* 50928: News, Src/exec.c, Test/C03traps.ztst: fix tests for 50897,
-	mention behavior change in NEWS
+	* 50928: Test/C03traps.ztst: scoping of ERR_RETURN in test
+	(most of this patch was not retained)
 
 	* 50922: Src/exec.c, Src/jobs.c: fix additional cases of signals
 	for current shell jobs on the right of a pipeline.  Backs out
 	part of 50874.
 
-2022-11-08  Bart Schaefer  <schaefer@zsh.org>
-
-	* 50897: Src/exec.c, Src/loop.c: nonzero status of complex
-	commands should trigger ERR_EXIT
-
 2022-11-08  Peter Stephenson  <p.stephenson@samsung.com>
 
 	* users/28338: Src/lex.c, Test/D08cmdsubst.ztst: edge case of an

NEWS

@@ -4,15 +4,6 @@ CHANGES FROM PREVIOUS VERSIONS OF ZSH
 
 Note also the list of incompatibilities in the README file.
 
-Changes since 5.9
------------------
-
-Handling of ERR_EXIT is corrected when the final status of a structured
-command (for, select, while, repeat, if, case, or a list in braces) is
-nonzero.  To be compatible with other shells, "zsh -e" now exits in
-those circumstances, whereas previous versions did not.  This does not
-affect the handling of nonzero status within conditional statements.
-
 Changes since 5.8.1
 -------------------
 

Src/exec.c

@@ -451,7 +451,7 @@ execcursh(Estate state, int do_exec)
     cmdpop();
 
     state->pc = end;
-    this_noerrexit = (WC_SUBLIST_TYPE(*end) != WC_SUBLIST_END);
+    this_noerrexit = 1;
 
     return lastval;
 }
@@ -1442,8 +1442,6 @@ execlist(Estate state, int dont_change_job, int exiting)
 		    execsimple(state);
 		else
 		    execpline(state, code, ltype, (ltype & Z_END) && exiting);
-		if (!locallevel || unset(ERRRETURN))
-		    this_noerrexit = noerrexit;
 		state->pc = next;
 		goto sublist_done;
 		break;

Src/loop.c

@@ -208,7 +208,7 @@ execfor(Estate state, int do_exec)
     loops--;
     simple_pline = old_simple_pline;
     state->pc = end;
-    this_noerrexit = (WC_SUBLIST_TYPE(*end) != WC_SUBLIST_END);
+    this_noerrexit = 1;
     return lastval;
 }
 
@@ -336,7 +336,7 @@ execselect(Estate state, UNUSED(int do_exec))
     loops--;
     simple_pline = old_simple_pline;
     state->pc = end;
-    this_noerrexit = (WC_SUBLIST_TYPE(*end) != WC_SUBLIST_END);
+    this_noerrexit = 1;
     return lastval;
 }
 
@@ -478,7 +478,7 @@ execwhile(Estate state, UNUSED(int do_exec))
     popheap();
     loops--;
     state->pc = end;
-    this_noerrexit = (WC_SUBLIST_TYPE(*end) != WC_SUBLIST_END);
+    this_noerrexit = 1;
     return lastval;
 }
 
@@ -532,7 +532,7 @@ execrepeat(Estate state, UNUSED(int do_exec))
     loops--;
     simple_pline = old_simple_pline;
     state->pc = end;
-    this_noerrexit = (WC_SUBLIST_TYPE(*end) != WC_SUBLIST_END);
+    this_noerrexit = 1;
     return lastval;
 }
 
@@ -587,7 +587,7 @@ execif(Estate state, int do_exec)
 	    lastval = 0;
     }
     state->pc = end;
-    this_noerrexit = (WC_SUBLIST_TYPE(*end) != WC_SUBLIST_END);
+    this_noerrexit = 1;
 
     return lastval;
 }
@@ -701,7 +701,7 @@ execcase(Estate state, int do_exec)
 
     if (!anypatok)
 	lastval = 0;
-    this_noerrexit = (WC_SUBLIST_TYPE(*end) != WC_SUBLIST_END);
+    this_noerrexit = 1;
 
     return lastval;
 }

Test/C03traps.ztst

@@ -726,7 +726,8 @@ F:Must be tested with a top-level script rather than source or function
   done
   print OK
   )
-1:ERR_EXIT triggered by status 1 at end of for
+0:ERR_EXIT not triggered by status 1 at end of for
+>OK
 
   (setopt err_exit
   integer x=0
@@ -735,7 +736,8 @@ F:Must be tested with a top-level script rather than source or function
   done
   print OK
   )
-1:ERR_EXIT triggered by status 1 at end of while
+0:ERR_EXIT not triggered by status 1 at end of while
+>OK
 
   (setopt err_exit
   repeat 1; do
@@ -743,7 +745,8 @@ F:Must be tested with a top-level script rather than source or function
   done
   print OK
   )
-1:ERR_EXIT triggered by status 1 at end of repeat
+0:ERR_EXIT not triggered by status 1 at end of repeat
+>OK
 
   (setopt err_exit
   if true; then
@@ -751,7 +754,8 @@ F:Must be tested with a top-level script rather than source or function
   fi
   print OK
   )
-1:ERR_EXIT triggered by status 1 at end of if
+0:ERR_EXIT not triggered by status 1 at end of if
+>OK
 
   (setopt err_exit
   {
@@ -759,7 +763,8 @@ F:Must be tested with a top-level script rather than source or function
   }
   print OK
   )
-1:ERR_EXIT triggered by status 1 at end of { }
+0:ERR_EXIT not triggered by status 1 at end of { }
+>OK
 
   unsetopt err_exit err_return
   (setopt err_exit