diff --git a/NEWS b/NEWS
index 4893f0953..e7bb8927b 100644
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,12 @@ For full details, see the git log at: https://github.com/ksh93/ksh
 
 Any uppercase BUG_* names are modernish shell bug IDs.
 
+2021-04-26:
+
+- Fixed a bug introduced on 2021-02-20 in which a shared-state command
+  substitution stopped sharing its state with the calling shell environment
+  if it executed a command that locally redirected standard outpuut.
+
 2021-04-22:
 
 - shcomp (the shell bytecode compiler) was fixed to correctly compile process
diff --git a/src/cmd/ksh93/include/version.h b/src/cmd/ksh93/include/version.h
index 979d8bb6f..3de355fd9 100644
--- a/src/cmd/ksh93/include/version.h
+++ b/src/cmd/ksh93/include/version.h
@@ -21,7 +21,7 @@
 
 #define SH_RELEASE_FORK	"93u+m"		/* only change if you develop a new ksh93 fork */
 #define SH_RELEASE_SVER	"1.0.0-alpha"	/* semantic version number: https://semver.org */
-#define SH_RELEASE_DATE	"2021-04-22"	/* must be in this format for $((.sh.version)) */
+#define SH_RELEASE_DATE	"2021-04-26"	/* must be in this format for $((.sh.version)) */
 #define SH_RELEASE_CPYR	"(c) 2020-2021 Contributors to ksh " SH_RELEASE_FORK
 
 /* Scripts sometimes field-split ${.sh.version}, so don't change amount of whitespace. */
diff --git a/src/cmd/ksh93/sh/io.c b/src/cmd/ksh93/sh/io.c
index 303655be9..30b687d73 100644
--- a/src/cmd/ksh93/sh/io.c
+++ b/src/cmd/ksh93/sh/io.c
@@ -1147,13 +1147,15 @@ int	sh_redirect(Shell_t *shp,struct ionod *iop, int flag)
 		fn = (iof&IOUFD);
 		if(fn==1)
 		{
-			if(shp->subshare && flag==2)
+			if(shp->subshell && shp->comsub && (flag==1 || flag==2))
 			{
-				errormsg(SH_DICT,ERROR_exit(1),"cannot redirect stdout inside shared-state comsub");
-				UNREACHABLE();
-			}
-			if(shp->subshell && (flag==2 || isstring))
+				if(shp->subshare)
+				{
+					errormsg(SH_DICT,ERROR_exit(1),"cannot redirect stdout inside shared-state comsub");
+					UNREACHABLE();
+				}
 				sh_subfork();
+			}
 		}
 		if(shp->redir0 && fn==0 && !(iof&IOMOV))
 			shp->redir0 = 2;
diff --git a/src/cmd/ksh93/tests/subshell.sh b/src/cmd/ksh93/tests/subshell.sh
index 19b9e61d9..e5eeee171 100755
--- a/src/cmd/ksh93/tests/subshell.sh
+++ b/src/cmd/ksh93/tests/subshell.sh
@@ -1010,5 +1010,13 @@ unalias a
 [[ $got == "$exp" ]] || err_exit 'backtick comsub with alias:' \
 	"expected $(printf %q "$exp"), got $(printf %q "$got")"
 
+# ======
+# Redirecting standard output for a single command should not cause a subshare to fork
+exp='good'
+got='bad'
+dummy=${ : >&2; got='good'; }
+[[ $got == "$exp" ]] || err_exit 'subshare stopped sharing state after command that redirects stdout' \
+	"(expected '$exp', got '$got')"
+
 # ======
 exit $((Errors<125?Errors:125))