fix: restore issue for an instance with empty configdata #46

Job	Run time
ci / check if job needs to run	5s
ci / prepare test matrix	16s
ci / MOODLE_310_STABLE - pgsql - php 7.2 - block_carousel	2m 3s
ci / MOODLE_311_STABLE - mariadb - php 7.3 - block_carousel	1m 53s
ci / MOODLE_33_STABLE - mariadb - php 7.1 - block_carousel	2m 23s
ci / MOODLE_34_STABLE - pgsql - php 7.1 - block_carousel	1m 24s
ci / MOODLE_35_STABLE - mariadb - php 7.1 - block_carousel	1m 42s
ci / MOODLE_35_STABLE - mariadb - php 7.2 - block_carousel	1m 35s
ci / MOODLE_35_STABLE - pgsql - php 7.1 - block_carousel	1m 34s
ci / MOODLE_35_STABLE - pgsql - php 7.2 - block_carousel	1m 36s
ci / MOODLE_36_STABLE - mariadb - php 7.1 - block_carousel	1m 19s
ci / MOODLE_37_STABLE - pgsql - php 7.2 - block_carousel	1m 26s
ci / MOODLE_38_STABLE - mariadb - php 7.3 - block_carousel	1m 31s
ci / MOODLE_39_STABLE - mariadb - php 7.2 - block_carousel	1m 33s
ci / MOODLE_39_STABLE - pgsql - php 7.2 - block_carousel	1m 59s
ci / MOODLE_39_STABLE - mariadb - php 7.3 - block_carousel	1m 33s
ci / MOODLE_39_STABLE - pgsql - php 7.3 - block_carousel	2m 0s
ci / MOODLE_400_STABLE - pgsql - php 7.3 - block_carousel	2m 2s
ci / MOODLE_401_STABLE - pgsql - php 7.4 - block_carousel	2m 7s
ci / MOODLE_401_STABLE - mariadb - php 7.4 - block_carousel	1m 57s
ci / MOODLE_401_STABLE - pgsql - php 8.0 - block_carousel	2m 55s
ci / MOODLE_401_STABLE - mariadb - php 8.0 - block_carousel	3m 33s
ci / Release to the Moodle plugin directory	0s
	38m 26s

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