use the LTS builders

We were errorneously returning true here, as we do not have any more
images to jump to. If we only have one image, return false.

This avoids the avif handler getting stuck in a loop with only single images.

BUG: 521200
FIXED-IN: 6.28


(cherry picked from commit 7edf807082)

Co-authored-by: Akseli Lahtinen <[email protected]>

.gitlab-ci.yml

@@ -4,12 +4,7 @@
 include:
   - project: sysadmin/ci-utilities
     file:
-      - /gitlab-templates/linux-qt6.yml
+      - /gitlab-templates/linux-qt6-lts.yml
-      - /gitlab-templates/linux-qt6-next.yml
-      - /gitlab-templates/alpine-qt6.yml
-      - /gitlab-templates/android-qt6.yml
-      - /gitlab-templates/freebsd-qt6.yml
-      - /gitlab-templates/windows-qt6.yml
       - /gitlab-templates/xml-lint.yml
       - /gitlab-templates/yaml-lint.yml
       - /gitlab-templates/oss-fuzz.yml

src/imageformats/avif.cpp

@@ -1180,7 +1180,7 @@ bool QAVIFHandler::jumpToNextImage()
     if (m_decoder->imageIndex >= 0) {
         if (m_decoder->imageCount < 2) {
             m_parseState = ParseAvifSuccess;
-            return true;
+            return false;
         }
 
         if (m_decoder->imageIndex >= m_decoder->imageCount - 1) { // start from beginning