From b85aa466413f10b9220edb20482a896d5be3d8c9 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 7 Nov 2015 13:13:00 +0000
Subject: [PATCH 1/1] Remove any pre-existing _source.changes file before
 building source, as a safety check.

---
 debian/changelog | 2 ++
 dgit             | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/debian/changelog b/debian/changelog
index 5d9e8cb0..b02081ee 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -16,6 +16,8 @@ dgit (1.5~~) unstable; urgency=medium
   * dgit sbuild: Check that the binary .changes file doesn't contain a
     .dsc.
   * Introduce --rm-old-changes to delete previous builds' changes files.
+  * Remove any pre-existing _source.changes file before building source,
+    as a safety check.
 
   Documentation:
   * Document the dgit-distro.DISTRO.quilt-mode config setting.
diff --git a/dgit b/dgit
index 38c1497f..9803b13b 100755
--- a/dgit
+++ b/dgit
@@ -3122,6 +3122,10 @@ sub build_source {
     }
     build_prep();
     $sourcechanges = changespat $version,'source';
+    if (act_local()) {
+	unlink "../$sourcechanges" or $!==ENOENT
+	    or fail "remove $sourcechanges: $!";
+    }
     $dscfn = dscfn($version);
     if ($cleanmode eq 'dpkg-source') {
 	runcmd_ordryrun_local @dpkgbuildpackage, qw(-us -uc -S),
-- 
2.30.2