[Bug] OCR-related task return unicode instead of UTF-8 character

[KohakuBlueleaf]

Checklist

• [X] 1. I have searched related issues but cannot get the expected help.
• [X] 2. The bug has not been fixed in the latest version.
• [X] 3. Please note that if the bug-related issue you submitted lacks corresponding environment info and a minimal reproducible demo, it will be challenging for us to reproduce and resolve the issue, reducing the likelihood of receiving feedback.

Describe the bug

When input image have non-ascii character (especially Chinese character/japanese hiragana, katakana, kanji), model will return unicode \uxxxx instead of the character directly.

For example:

The image features two characters, both female, with long hair and holding assault rifles. 
The character on the left has orange hair and is wearing a military uniform with a skirt, thigh holster, and brown ankle boots. 
She has a necklace and a bracelet, and is standing on one leg with her mouth open, looking at the viewer. 
The character on the right has brown hair and is wearing a military uniform with a belt, brown knee-high boots, and fingerless gloves. She is also holding an assault rifle and has a pouch attached to her thigh. 
Both characters have a simple white background.", "response_text": "The image contains text. 
On the left side, there is text that reads "IMI GALIL" in large, bold letters, followed by "\u52a0\u5229\u5c14" in smaller text. 
Below this, there is a section titled "BIOGRAPHY \u4eba\u7269\u7b80\u4ecb" with a rating scale and a description in Chinese characters. 
The text is in a simple, clean font and is located in the upper left corner of the image.

On the right side, there is text that reads "SIG-510" in large, bold letters, followed by "\u7a81\u51fb\u6b65\u67aa" in smaller text. 
Below this, there is a section titled "BIOGRAPHY \u4eba\u7269\u7b80\u4ecb" with a rating scale and a description in Chinese characters. 
The text is in a simple, clean font and is located in the upper right corner of the image.

All the unicode appeared in text are actually correct and meaningful:

\u52a0\u5229\u5c14 加利尔
\u4eba\u7269\u7b80\u4ecb 人物简介
\u7a81\u51fb\u6b65\u67aa 突击步枪

Reproduction

Please check the description above, I guess you can use provided image to reproduce this bug easily?

Environment

Not related to bug itself.

Error traceback

No response