From ade49d44b78a241ecd9ecae0aa904b849afc586f Mon Sep 17 00:00:00 2001
From: Rusty Bird <rustybird@net-c.com>
Date: Fri, 16 Feb 2018 21:47:35 +0000
Subject: [PATCH] lvm_thin: don't purge one revision too few

We just added one that must be taken into account.
---
 qubes/storage/lvm.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/qubes/storage/lvm.py b/qubes/storage/lvm.py
index 070523cc..bec33ee1 100644
--- a/qubes/storage/lvm.py
+++ b/qubes/storage/lvm.py
@@ -286,6 +286,7 @@ class ThinVolume(qubes.storage.Volume):
             cmd = ['clone', self.vid,
                 '{}-{}-back'.format(self.vid, int(time.time()))]
             qubes_lvm(cmd, self.log)
+            reset_cache()
             self._remove_revisions()
 
         # TODO: when converting this function to coroutine, this _must_ be