Fixed MakePatternFileName() in case the event doesn't yet have a short text

CONTRIBUTORS

@@ -3669,6 +3669,8 @@ J
  is false
  for reporting an endless spawning of pattern timers in case the spawned timer doesn't
  use VPS and fully overlaps a second event that is longer than the original one
+ for reporting a missing EPISODE macro expansion in case the event doesn't yet have a
+ short text when generating the pattern timer file name
 
 Stefan Verse <Verse@amotronics.de>
  for fixing an occasional black screen when switching channels

HISTORY

@@ -9636,3 +9636,5 @@ Video Disk Recorder Revision History
 - Spawned timers that don't use VPS now automatically adjust their start/stop times
   to changes in the respective event's times.
 - Fixed handling the timer counter in cSchedule::DelEvent().
+- Fixed MakePatternFileName() in case the event doesn't yet have a short text (reported
+  by Jürgen Schneider).

timers.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: timers.c 5.7 2021/04/06 08:48:35 kls Exp $
+ * $Id: timers.c 5.8 2021/04/06 09:50:30 kls Exp $
  */
 
 #include "timers.h"
@@ -163,7 +163,8 @@ static cString MakePatternFileName(const char *Pattern, const char *Title, const
   if (MatchPattern(Pattern, Title, &Before, &Match, &After)) {
      char *Result = strdup(File);
      Result = strreplace(Result, TIMERMACRO_TITLE, Title);
-     Result = strreplace(Result, TIMERMACRO_EPISODE, Episode);
+     if (!isempty(Episode)) // the event might not yet have a "short text", so we leave this to the actual recording
+        Result = strreplace(Result, TIMERMACRO_EPISODE, Episode);
      Result = strreplace(Result, TIMERMACRO_BEFORE, Before);
      Result = strreplace(Result, TIMERMACRO_MATCH, Match);
      Result = strreplace(Result, TIMERMACRO_AFTER, After);