Using macros in .Sh header lines, or having .Sm off or .Bk -words open

while processing .Sh, is not at all recommended, but it's not strictly
a syntax violation either, and in any case, mandoc must not die in an
assertion.  I broke this in rev. 1.124.

Crash found while trying to read the (rather broken) original 4.3BSD-Reno
od(1) manual page.

2 files changed, 14 insertions, 2 deletions

diff --git a/regress/usr.bin/mandoc/mdoc/Rs/break.in b/regress/usr.bin/mandoc/mdoc/Rs/break.in
index 92b462e27f3..0e8d03012a5 100644
--- a/regress/usr.bin/mandoc/mdoc/Rs/break.in
+++ b/regress/usr.bin/mandoc/mdoc/Rs/break.in
@@ -1,4 +1,4 @@
-.Dd October 28, 2009
+.Dd April 15, 2014
 .Dt RS-BREAK 1
 .Os OpenBSD
 .Sh NAME
@@ -18,3 +18,10 @@ reference after a blank line:
 .%J journal
 .%N 42
 .Re
+.Sh SEE Em ALSO
+reference after a blank line:
+.Rs
+.%A author
+.%J journal
+.%N 42
+.Re
diff --git a/regress/usr.bin/mandoc/mdoc/Rs/break.out_ascii b/regress/usr.bin/mandoc/mdoc/Rs/break.out_ascii
index 3d0c0b0ec40..4587ced7e1f 100644
--- a/regress/usr.bin/mandoc/mdoc/Rs/break.out_ascii
+++ b/regress/usr.bin/mandoc/mdoc/Rs/break.out_ascii
@@ -11,4 +11,9 @@ SSEEEE AALLSSOO
 
      author, _j_o_u_r_n_a_l, 42.
 
-OpenBSD                        October 28, 2009                        OpenBSD
+SSEEEE _A_L_S_O
+     reference after a blank line:
+
+     author, _j_o_u_r_n_a_l, 42.
+
+OpenBSD                         April 15, 2014                         OpenBSD