# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1507244730 -7200
# Node ID e4aaf9fbd8b450f8824070468215d2b6eb4b3d49
# Parent  413deed9aecc1395726821b9cd5f8e955f82b098
Handle non-rule periods with special origins that can still be modified.

diff -r 413deed9aecc -r e4aaf9fbd8b4 imiptools/data.py
--- a/imiptools/data.py	Thu Oct 05 23:16:13 2017 +0200
+++ b/imiptools/data.py	Fri Oct 06 01:05:30 2017 +0200
@@ -495,10 +495,10 @@
         main_changed = False
 
         for p in periods:
-            if p.origin == "RDATE" and p != self.get_main_period():
+            if p.origin == "DTSTART":
+                main_changed = self.set_period(p)
+            elif p.origin != "RRULE" and p != self.get_main_period():
                 new_rdates.append(get_period_item(p.get_start(), p.get_end()))
-            elif p.origin == "DTSTART":
-                main_changed = self.set_period(p)
 
         if new_rdates:
             self["RDATE"] = new_rdates