From 3c99b06c7776345cfc3a3d4fd0c59fe671644317 Mon Sep 17 00:00:00 2001
From: Lubos Kardos <lkardos@redhat.com>
Date: Wed, 21 Oct 2015 15:25:47 +0200
Subject: [PATCH] Overwrite a file if it is not marked as config any more.

If a file was marked as config in the previous version of a package but
it is not marked as config in currently being installed version of
the package then backup the old file as .rpmsave and overwrite it with
the new file. (rhbz:1263859)
---
 lib/rpmfi.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/rpmfi.c b/lib/rpmfi.c
index 924ff4b..28a697e 100644
--- a/lib/rpmfi.c
+++ b/lib/rpmfi.c
@@ -1040,6 +1040,12 @@ rpmFileAction rpmfilesDecideFate(rpmfiles ofi, int oix,
 	        goto exit;		/* file identical in new, replace. */
 	}
 
+	/* if new file is no longer config, backup it and replace it */
+	if (!(newFlags & RPMFILE_CONFIG)) {
+	    action = FA_SAVE;
+	    goto exit;
+	}
+
 	/* If file can be determined identical in old and new pkg, let it be */
 	if (newWhat == REG && oalgo == nalgo && odiglen == ndiglen) {
 	    if (odigest && ndigest && memcmp(odigest, ndigest, odiglen) == 0) {
@@ -1071,6 +1077,12 @@ rpmFileAction rpmfilesDecideFate(rpmfiles ofi, int oix,
 		goto exit;		/* unmodified config file, replace. */
 	}
 
+	/* if new file is no longer config, backup it and replace it */
+	if (!(newFlags & RPMFILE_CONFIG)) {
+	    action = FA_SAVE;
+	    goto exit;
+	}
+
 	/* If link is identical in old and new pkg, let it be */
 	if (newWhat == LINK && oFLink && nFLink && rstreq(oFLink, nFLink)) {
 	    action = FA_SKIP;		/* identical file, don't bother. */
-- 
2.5.5