49906 (Bart), 49911: Fixes to querying jobs in subshell.

Don't attempt to query invalid job off end of table, resulting in
crashes from $jobtstates.

If background task started in subshell, look at tatsks within subshell
instead of main shell.  Document and add test.

1 files changed, 6 insertions, 0 deletions

diff --git a/Doc/Zsh/mod_parameter.yo b/Doc/Zsh/mod_parameter.yo
index 2e3011e44..f3bcd7957 100644
--- a/Doc/Zsh/mod_parameter.yo
+++ b/Doc/Zsh/mod_parameter.yo
@@ -165,6 +165,8 @@ The keys of the associative arrays are usually valid job numbers,
 and these are the values output with, for example, tt(${(k)jobdirs}).
 Non-numeric job references may be used when looking up a value;
 for example, tt(${jobdirs[%+]}) refers to the current job.
+
+See the tt(jobs) builtin for how job information is provided in a subshell.
 )
 vindex(jobtexts)
 item(tt(jobtexts))(
@@ -173,6 +175,8 @@ that were used to start the jobs.
 
 Handling of the keys of the associative array is as described for
 tt(jobdirs) above.
+
+See the tt(jobs) builtin for how job information is provided in a subshell.
 )
 vindex(jobstates)
 item(tt(jobstates))(
@@ -189,6 +193,8 @@ the var(state) describes the state of that process.
 
 Handling of the keys of the associative array is as described for
 tt(jobdirs) above.
+
+See the tt(jobs) builtin for how job information is provided in a subshell.
 )
 vindex(nameddirs)
 item(tt(nameddirs))(