Fixed cannot change image format [#3173]

getgrav · Jan 25, 2021 · a4481bf · a4481bf
1 parent fcf24a4
commit a4481bf
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,7 @@
 1. [](#bugfix)
     * Fixed `bin/gpm uninstall` script not working because of bad typehint [#3172](https://github.com/getgrav/grav/issues/3172)
     * Fixed `login: visibility_requires_access` not working [#3176](https://github.com/getgrav/grav/issues/3176)
+    * Fixed cannot change image format [#3173](https://github.com/getgrav/grav/issues/3173)
 
 # v1.7.3
 ## 01/21/2021

diff --git a/system/src/Grav/Common/Media/Traits/ImageMediaTrait.php b/system/src/Grav/Common/Media/Traits/ImageMediaTrait.php
@@ -383,8 +383,10 @@ protected function saveImage()
             return $this->result;
         }
 
-        $extension = strtolower($this->get('extension'));
-        $this->format($extension);
+        if ($this->format === 'guess') {
+            $extension = strtolower($this->get('extension'));
+            $this->format($extension);
+        }
 
         if (!$this->debug_watermarked && $this->get('debug')) {
             $ratio = $this->get('ratio');