wallabag: Migration from 2.3.8 to 2.4.2 fails

Environment

• Version: 2.3.8
• Installation: Yunohost package
• PHP version: 7.4
• OS: Debian
• Database: MySQL

What steps will reproduce the bug?

This happens on an update with the yunohost package but this is related to a SQL migration so I thing this is a wallabag issue, or at least you might be able to help?

1. Install yunohost package (current version = 2.3.8 )
2. Try to upgrade with yunohost app upgrade wallabag2 -u https://github.com/YunoHost-Apps/wallabag2_ynh/tree/testing

Applying migration 20190510141130 throws some SQL errors when dropping some foreign keys:

2021-04-22 06:42:07,936: DEBUG -   ++ migrating 20190510141130
2021-04-22 06:42:07,936: DEBUG - 
2021-04-22 06:42:08,036: DEBUG -      -> ALTER TABLE `oauth2_access_tokens` DROP FOREIGN KEY FK_368A4209A76ED395
2021-04-22 06:42:08,038: WARNING - 06:42:07 ERROR     [console] Error thrown while running command "--no-interaction --env prod doctrine:migrations:migrate". Message: "An exception occurred while executing 'ALTER TABLE `oauth2_access_tokens` DROP FOREIGN KEY FK_368A4209A76ED395':
2021-04-22 06:42:08,038: DEBUG - Migration 20190510141130 failed during Execution. Error An exception occurred while executing 'ALTER TABLE `oauth2_access_tokens` DROP FOREIGN KEY FK_368A4209A76ED395':
2021-04-22 06:42:08,038: WARNING - SQLSTATE[42000]: Syntax error or access violation: 1091 Can't DROP FOREIGN KEY `FK_368A4209A76ED395`; check that it exists" ["exception" => Doctrine\DBAL\Exception\DriverException { …},"command" => "--no-interaction --env prod doctrine:migrations:migrate","message" => """  An exception occurred while executing 'ALTER TABLE `oauth2_access_tokens` DROP FOREIGN KEY FK_368A4209A76ED395':\n  \n  SQLSTATE[42000]: Syntax error or access violation: 1091 Can't DROP FOREIGN KEY `FK_368A4209A76ED395`; check that it exists  """]
2021-04-22 06:42:08,039: DEBUG - SQLSTATE[42000]: Syntax error or access violation: 1091 Can't DROP FOREIGN KEY `FK_368A4209A76ED395`; check that it exists
2021-04-22 06:42:08,039: WARNING - In AbstractMySQLDriver.php line 110:
2021-04-22 06:42:08,040: WARNING -   An exception occurred while executing 'ALTER TABLE `oauth2_access_tokens` DROP FOREIGN KEY FK_368A42
2021-04-22 06:42:08,040: WARNING -   09A76ED395':
2021-04-22 06:42:08,041: WARNING -   SQLSTATE[42000]: Syntax error or access violation: 1091 Can't DROP FOREIGN KEY `FK_368A4209A76ED395`
2021-04-22 06:42:08,041: WARNING -   ; check that it exists
2021-04-22 06:42:08,042: WARNING - In PDOConnection.php line 91:
2021-04-22 06:42:08,042: WARNING -   SQLSTATE[42000]: Syntax error or access violation: 1091 Can't DROP FOREIGN KEY `FK_368A4209A76ED395`
2021-04-22 06:42:08,042: WARNING -   ; check that it exists
2021-04-22 06:42:08,043: WARNING - In PDOConnection.php line 86:
2021-04-22 06:42:08,043: WARNING -   SQLSTATE[42000]: Syntax error or access violation: 1091 Can't DROP FOREIGN KEY `FK_368A4209A76ED395`
2021-04-22 06:42:08,043: WARNING -   ; check that it exists

I tried listing the foreign keys but I might have the wrong SQL query:

MariaDB [wallabag2]> SELECT    TABLE_NAME,COLUMN_NAME,CONSTRAINT_NAME, REFERENCED_TABLE_NAME,REFERENCED_COLUMN_NAME FROM   INFORMATION_SCHEMA.KEY_COLUMN_USAGE WHERE   REFERENCED_TABLE_SCHEMA = 'wallabag2' AND   REFERENCED_TABLE_NAME = 'oauth2_access_tokens';
Empty set (0.027 sec)

MariaDB [wallabag2]>