hightlight not worked when use script_score

[suxianbaozi]

Describe the feature:

Elasticsearch version (bin/elasticsearch --version): 7.3.1

Plugins installed: ["ikAnalyse"]

JVM version (java -version):1.7

OS version (uname -a if on a Unix-like system):centos7

Description of the problem including expected versus actual behavior:

hightlight not worked when use script_score，highlight not found in the response

if i used function_score it works fine

GET company/_search
{
"query": {
"script_score":{
"query": {
"multi_match": {
"query": "有限公司",
"fields": ["companyName^5","historyName^4","companyDesc"],
"minimum_should_match": "4<50%"
}
},
"script":{
"source":"1"
}
}
},
"highlight": {
"fields": {"companyName": {},"companyDesc": {},"historyName":{}}
}
}

[elasticmachine]

Pinging @elastic/es-search

[mayya-sharipova]

@suxianbaozi Thank you for filing this issue. Indeed the highlighting was not working in script_score query. This would be fixed in 7.4.1 and 7.5.