API Issue: Multiline Suggestion Anchor (NaN) Not Mapped Correctly on Bitbucket Server REST API

[Hugo Fernando Silva Álvarez]

Context:

• I am programmatically posting a suggestion comment to a Bitbucket Server PR using the POST /rest/api/1.0/projects/{projectKey}/repos/{repositorySlug}/pull-requests/{pullRequestId}/comments endpoint.
• Payload:
  
  {

      "text": "The progress bar component does not expose its name, role, state, and value programmatically to assistive technologies. The visual progress indicator lacks proper ARIA attributes such as role=\"progressbar\", aria-valuemin, aria-valuemax, aria-valuenow, and aria-label, making it impossible for screen readers and other assistive technologies to correctly interpret and announce the progress information to users.\n\n```suggestion\n <div\n className=\"w-full bg-gray-200 dark:bg-gray-700 rounded-full h-2 mt-2\"\n role=\"progressbar\"\n aria-valuemin={0}\n aria-valuemax={100}\n aria-valuenow={Math.round((userData?.completedLessons / userData?.totalLessons) * 100) || 0}\n aria-label={`Learning progress: ${userData?.completedLessons} out of ${userData?.totalLessons} lessons completed`}\n >\n <div\n className=\"bg-blue-600 h-2 rounded-full transition-all duration-300\"\n style={{\n width: `${\n (userData?.completedLessons / userData?.totalLessons) * 100\n }%`,\n }}\n />\n </div>\n```",

      "anchor": {

          "diffType": "EFFECTIVE",

          "line": 116,

          "lineType": "ADDED",

          "fileType": "TO",

          "path": "src/components/DynamicHomeContent.tsx",

          "srcPath": "src/components/DynamicHomeContent.tsx",

          "multilineMarker": {

              "startLine": 107,

              "startLineType": "ADDED"

          },

          "multilineSpan": {

              "srcSpanStart": 107,

              "srcSpanEnd": 116,

              "destSpanStart": 107,

              "destSpanEnd": 122  // I tried 121, 123, and 124, but it always fails.

          }

      }

  }

The Goal:

• To enable the "Apply suggestion" button for a code block replacement that spans multiple lines (L107-L116) in the destination file.

The Problem (Behavior):

• When the suggestion is posted, the interface displays the line numbers in the diff as NaN (Not a Number) instead of the actual line range (107-116).