[Asset] Setting focal point breaks image asset

[rberneder]

Scenario

When setting a focal point within an image asset, the image breaks. It can no longer be displayed in the backend UI. Also every view where the image is placed breaks and shows a placeholder image.

Server exception response

{
  "success": false,
  "message": "Pimcore\\Model\\Asset\\Image\\Thumbnail::getLocalFileFromStream(): Return value must be of type string, null returned",
  "trace": [
    {
      "file": "\/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset\/Thumbnail\/ImageThumbnailTrait.php",
      "line": 312,
      "function": "getLocalFileFromStream",
      "class": "Pimcore\\Model\\Asset\\Image\\Thumbnail",
      "type": "::",
      "args": [
        null
      ]
    },
    {
      "file": "\/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset\/Image.php",
      "line": 148,
      "function": "getLocalFile",
      "class": "Pimcore\\Model\\Asset\\Image\\Thumbnail",
      "type": "-\u003E",
      "args": []
    },
    {
      "file": "\/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset\/Image.php",
      "line": 96,
      "function": "detectFaces",
      "class": "Pimcore\\Model\\Asset\\Image",
      "type": "-\u003E",
      "args": []
    },
    {
      "file": "\/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset.php",
      "line": 731,
      "function": "postPersistData",
      "class": "Pimcore\\Model\\Asset\\Image",
      "type": "-\u003E",
      "args": []
    },
    {
      "file": "\/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset\/Image.php",
      "line": 75,
      "function": "update",
      "class": "Pimcore\\Model\\Asset",
      "type": "-\u003E",
      "args": [
        []
      ]
    },
    {
      "file": "\/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset.php",
      "line": 533,
      "function": "update",
      "class": "Pimcore\\Model\\Asset\\Image",
      "type": "-\u003E",
      "args": [
        []
      ]
    },
    {
      "file": "\/var\/www\/html\/vendor\/pimcore\/pimcore\/bundles\/AdminBundle\/Controller\/Admin\/Asset\/AssetController.php",
      "line": 992,
      "function": "save",
      "class": "Pimcore\\Model\\Asset",
      "type": "-\u003E",
      "args": []
    },
    {
      "file": "\/var\/www\/html\/vendor\/symfony\/symfony\/src\/Symfony\/Component\/HttpKernel\/HttpKernel.php",
      "line": 157,
      "function": "saveAction",
      "class": "Pimcore\\Bundle\\AdminBundle\\Controller\\Admin\\Asset\\AssetController",
      "type": "-\u003E",
      "args": [
        {
          "attributes": {},
          "request": {},
          "query": {},
          "server": {},
          "files": {},
          "cookies": {},
          "headers": {}
        },
        {}
      ]
    },
    {
      "file": "\/var\/www\/html\/vendor\/symfony\/symfony\/src\/Symfony\/Component\/HttpKernel\/HttpKernel.php",
      "line": 79,
      "function": "handleRaw",
      "class": "Symfony\\Component\\HttpKernel\\HttpKernel",
      "type": "-\u003E",
      "args": [
        {
          "attributes": {},
          "request": {},
          "query": {},
          "server": {},
          "files": {},
          "cookies": {},
          "headers": {}
        },
        1
      ]
    },
    {
      "file": "\/var\/www\/html\/vendor\/symfony\/symfony\/src\/Symfony\/Component\/HttpKernel\/Kernel.php",
      "line": 195,
      "function": "handle",
      "class": "Symfony\\Component\\HttpKernel\\HttpKernel",
      "type": "-\u003E",
      "args": [
        {
          "attributes": {},
          "request": {},
          "query": {},
          "server": {},
          "files": {},
          "cookies": {},
          "headers": {}
        },
        1,
        true
      ]
    },
    {
      "file": "\/var\/www\/html\/public\/index.php",
      "line": 35,
      "function": "handle",
      "class": "Symfony\\Component\\HttpKernel\\Kernel",
      "type": "-\u003E",
      "args": [
        {
          "attributes": {},
          "request": {},
          "query": {},
          "server": {},
          "files": {},
          "cookies": {},
          "headers": {}
        }
      ]
    }
  ],
  "traceString": "in \/var\/www\/html\/vendor\/pimcore\/pimcore\/lib\/Helper\/TemporaryFileHelperTrait.php:45\n#0 \/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset\/Thumbnail\/ImageThumbnailTrait.php(312): Pimcore\\Model\\Asset\\Image\\Thumbnail::getLocalFileFromStream(NULL)\n#1 \/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset\/Image.php(148): Pimcore\\Model\\Asset\\Image\\Thumbnail-\u003EgetLocalFile()\n#2 \/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset\/Image.php(96): Pimcore\\Model\\Asset\\Image-\u003EdetectFaces()\n#3 \/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset.php(731): Pimcore\\Model\\Asset\\Image-\u003EpostPersistData()\n#4 \/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset\/Image.php(75): Pimcore\\Model\\Asset-\u003Eupdate(Array)\n#5 \/var\/www\/html\/vendor\/pimcore\/pimcore\/models\/Asset.php(533): Pimcore\\Model\\Asset\\Image-\u003Eupdate(Array)\n#6 \/var\/www\/html\/vendor\/pimcore\/pimcore\/bundles\/AdminBundle\/Controller\/Admin\/Asset\/AssetController.php(992): Pimcore\\Model\\Asset-\u003Esave()\n#7 \/var\/www\/html\/vendor\/symfony\/symfony\/src\/Symfony\/Component\/HttpKernel\/HttpKernel.php(157): Pimcore\\Bundle\\AdminBundle\\Controller\\Admin\\Asset\\AssetController-\u003EsaveAction(Object(Symfony\\Component\\HttpFoundation\\Request), Object(Symfony\\Component\\HttpKernel\\Debug\\TraceableEventDispatcher))\n#8 \/var\/www\/html\/vendor\/symfony\/symfony\/src\/Symfony\/Component\/HttpKernel\/HttpKernel.php(79): Symfony\\Component\\HttpKernel\\HttpKernel-\u003EhandleRaw(Object(Symfony\\Component\\HttpFoundation\\Request), 1)\n#9 \/var\/www\/html\/vendor\/symfony\/symfony\/src\/Symfony\/Component\/HttpKernel\/Kernel.php(195): Symfony\\Component\\HttpKernel\\HttpKernel-\u003Ehandle(Object(Symfony\\Component\\HttpFoundation\\Request), 1, true)\n#10 \/var\/www\/html\/public\/index.php(35): Symfony\\Component\\HttpKernel\\Kernel-\u003Ehandle(Object(Symfony\\Component\\HttpFoundation\\Request))\n#11 {main}"
}

Tested on Pimcore v.10.0.3 and Pimcore Demo.

[brusch]

Fixed by #9679