From ea42a748cd41337e0566cfa585ddc7cd0aff331a Mon Sep 17 00:00:00 2001
From: Matthew Somerville <matthew@mysociety.org>
Date: Tue, 11 Jul 2023 19:51:45 +0100
Subject: [PATCH] Fix Dropzone issue changing existing photos.

I used the Dropzone source code to come up with what was missing when
adding existing files (we were previously reducing maxFiles which had
much the same effect unless you tried to remove/add when it got quite
confused); after doing that, I then discovered a PR on Dropzone which
has the same fixes: https://github.com/dropzone/dropzone/pull/2003
---
 web/cobrands/fixmystreet/fixmystreet.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/web/cobrands/fixmystreet/fixmystreet.js b/web/cobrands/fixmystreet/fixmystreet.js
index 591e21b67c0..8494b57bb6a 100644
--- a/web/cobrands/fixmystreet/fixmystreet.js
+++ b/web/cobrands/fixmystreet/fixmystreet.js
@@ -887,7 +887,7 @@ $.extend(fixmystreet.set_up, {
             if (!f) {
                 return;
             }
-            var mockFile = { name: f, server_id: f, dataURL: '/photo/temp.' + f };
+            var mockFile = { name: f, server_id: f, dataURL: '/photo/temp.' + f, status: Dropzone.SUCCESS, accepted: true };
             photodrop.emit("addedfile", mockFile);
             photodrop.createThumbnailFromUrl(mockFile,
                 photodrop.options.thumbnailWidth, photodrop.options.thumbnailHeight,
@@ -895,7 +895,9 @@ $.extend(fixmystreet.set_up, {
                     photodrop.emit('thumbnail', mockFile, thumbnail);
                 });
             photodrop.emit("complete", mockFile);
-            photodrop.options.maxFiles -= 1;
+            photodrop.files.push(mockFile);
+            photodrop._updateMaxFilesReachedClass();
+            prevFile = mockFile;
         });
       });
     });