41113 (tweaked): Save current line linkage to history ring.

When saving history state save whether the current history line
is linked into the ring and remove it, and restore as appropriate
later.  This avoids surprises where the history ring is freed
and incorrectly frees the current state in curline, which has
a different allocation strategy.

Original patch tweaked to make restoring more logical.

1 files changed, 1 insertions, 0 deletions

diff --git a/Src/zsh.h b/Src/zsh.h
index 22f73f806..405b27490 100644
--- a/Src/zsh.h
+++ b/Src/zsh.h
@@ -2931,6 +2931,7 @@ struct hist_stack {
     void (*addtoline) _((int));
     unsigned char *cstack;
     int csp;
+    int curline_linked;
 };
 
 /*