[epiphany] flatpak: Disable shallow clones

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 137c8cbb38c8bbca599838472906a9cdff6f67b4
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Thu Nov 23 10:07:50 2017 -0600

    flatpak: Disable shallow clones
    
    I didn't know about this. It should allow us to use 'git describe'
    during the build on the SDK master. Yay!

 org.gnome.Epiphany.json |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/org.gnome.Epiphany.json b/org.gnome.Epiphany.json
index 0cec50c..7ba340a 100644
--- a/org.gnome.Epiphany.json
+++ b/org.gnome.Epiphany.json
@@ -58,7 +58,8 @@
             "sources": [
                 {
                     "type": "git",
-                    "url": "https://git.gnome.org/browse/epiphany";
+                    "url": "https://git.gnome.org/browse/epiphany";,
+                    "disable-shallow-clone": true
                 }
             ]
         }