TJaniF opened a new issue, #49224:
URL: https://github.com/apache/airflow/issues/49224
### Apache Airflow version
3.0.0
### If "Other Airflow 2 version" selected, which one?
main branch
### What happened?
In Airflow 2.10.5 the dag below changes the map index displayed in the UI:
```
from airflow.decorators import dag, task
@dag()
def my_dag():
@task
def upstream_task():
return [1, 2, 3]
@task(
map_index_template="Hello! {{ my_custom_template }}",
)
def map_me(x, **context):
print(x)
from airflow.operators.python import get_current_context
context = get_current_context()
context["my_custom_template"] = f"{x}"
map_me.expand(x=upstream_task())
my_dag()
```
In RC 2 `map_index_template` does not change the index. (no errors)
```
from airflow.decorators import dag, task
@dag
def dtm():
@task
def upstream_task():
return [1, 2, 3]
@task(
map_index_template="Hello! {{ my_custom_template }}",
)
def map_me(x):
print(x)
from airflow.sdk.definitions.context import get_current_context
context = get_current_context()
context["my_custom_template"] = f"{x}"
map_me.expand(x=upstream_task())
dtm()
```
### What you think should happen instead?
_No response_
### How to reproduce
Use the second dag above and run it. See the integer index in the UI.
### Operating System
MacOS
### Versions of Apache Airflow Providers
Breeze
### Deployment
Other
### Deployment details
breeze
### Anything else?
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [x] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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