Description Carlos García-Mauriño 2022-09-26 19:31:25 CEST

`pwdChangeNextLogin` is set to null if set to false from UDM REST API. This behavior is confusing and prevents the variable from being modeled as a boolean variable.

The bug can be replicated with the following script (adapt the fqdn and user_dn). You will see that after setting it to false you get null. When setting it to true you get true (as expected).


```bash
#!/usr/bin/env /usr/bin/bash

fqdn=ucs-5989.skurup-68-5.intranet
credentials=Administrator:univention
user_dn='uid=demo_student,cn=schueler,cn=users,ou=DEMOSCHOOL,dc=skurup-68-5,dc=intranet'
new_value=false

# get the user
curl -X GET -H "Accept: application/json" --dump-header user.headers   https://$credentials@$fqdn/univention/udm/users/user/$user_dn | python3 -m json.tool > user.json

# display current value
jq '.properties.pwdChangeNextLogin' user.json
sed -i "s/\"pwdChangeNextLogin\": .*,/\"pwdChangeNextLogin\": $new_value,/" user.json
# display changed value
jq '.properties.pwdChangeNextLogin' user.json

# post changes
etag="$(grep -oP "(?<=Etag: \").*(?=\")" user.headers)"
curl -X PUT -H "Accept: application/json"   -H "Content-Type: application/json"   -H "If-Match: \"$etag\""   "https://$credentials@$fqdn/univention/udm/users/user/$user_dn" --data @user.json

# get the user
curl -X GET -H "Accept: application/json" --dump-header user.headers   https://$credentials@$fqdn/univention/udm/users/user/$user_dn | python3 -m json.tool > user.json

# display changed value
jq '.properties.pwdChangeNextLogin' user.json
```