Invalid s3 object key in s3:ObjectCreated:Put event - amazon-s3

Question

I have lambda function that is triggered when image is uploaded to s3 and optimises it.
Everything is working when I upload file from console, but when I upload it from code using boto3 I receive invalid key in the event.
Uploaded by renderImage lambda function:
{
"Records": [
{
"eventVersion": "2.1",
"eventSource": "aws:s3",
"awsRegion": "eu-central-1",
"eventTime": "2022-08-08T20:32:14.880Z",
"eventName": "ObjectCreated:Put",
"userIdentity": {
"principalId": "AWS::*******************:renderImage"
},
"requestParameters": {
"sourceIPAddress": "*.*.*.*"
},
"responseElements": {
"x-amz-request-id": "***********",
"x-amz-id-2": "*****************************************************************************"
},
"s3": {
"s3SchemaVersion": "1.0",
"configurationId": "s3ImageOptimizer-2386451296541264526234",
"bucket": {
"name": "myBucket",
"ownerIdentity": {
"principalId": "**************"
},
"arn": "arn:aws:s3:::myBucket"
},
"object": {
"key": "000-2022_08_08-08%3A32%3A04_PM.jpg", # <-- Invalid
"size": 558339,
"eTag": "e7e63f48Fd1849a53628255353f7027b",
"sequencer": "0062F172CED5CE84E2"
}
}
}
]
}
Uploaded by console:
{
"Records": [
{
"eventVersion": "2.1",
"eventSource": "aws:s3",
"awsRegion": "eu-central-1",
"eventTime": "2022-08-08T20:33:43.584Z",
"eventName": "ObjectCreated:Put",
"userIdentity": {
"principalId": "AWS:*******************"
},
"requestParameters": {
"sourceIPAddress": "*.*.*.*"
},
"responseElements": {
"x-amz-request-id": "***********",
"x-amz-id-2": "*****************************************************************************"
},
"s3": {
"s3SchemaVersion": "1.0",
"configurationId": "s3ImageOptimizer-2386451296541264526234",
"bucket": {
"name": "myBucket",
"ownerIdentity": {
"principalId": "**************"
},
"arn": "arn:aws:s3:::myBucket"
},
"object": {
"key": "000-2022_08_08-08-32-04_PM.jpg", # <-- Correct
"size": 558339,
"eTag": "e7e63f48Fd1849a53628255353f7027b",
"sequencer": "0062F173278112713C"
}
}
}
]
}
The thing is that when I upload using lambda function key is invalid it returns
000-2022_08_08-08%3A32%3A04_PM.jpg
instead of
000-2022_08_08-08-32-04_PM.jpg
It seems that is is encoding 2 of the dashes and replaces them with %3A.
Why is this happening?
Here is my serverless.yml definition:
service: s3-optimizer
package:
individually: true
plugins:
- serverless-iam-roles-per-function
provider:
name: aws
deploymentMethod: direct
runtime: nodejs16.x
region: eu-central-1
stage: develop
memorySize: 4096
apiGateway:
minimumCompressionSize: 1024
shouldStartNameWithService: true
httpApi:
cors: true
functions:
s3ImageOptimizer:
handler: src/functions/s3/image-optimizer/handler.main
timeout: 90
iamRoleStatements:
- Effect: Allow
Action:
- s3:GetObject
- s3:PutObject
Resource:
- arn:aws:s3:::myBucket/*
events:
- s3:
bucket: myBucket
event: s3:ObjectCreated:*
rules:
- prefix: original/
- suffix: .jpg
existing: true