Werk #14294: Fix empty elements for frontmatter templates

Component	Reporting & availability
Title	Fix empty elements for frontmatter templates
Date	Sep 18, 2022
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.2.0b1 Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.1.0p13 Checkmk Enterprise (CEE), Checkmk MSP (CME) 2.0.0p30 Checkmk Enterprise (CEE), Checkmk MSP (CME)

When trying to edit a report that is configured to be a front matter template, the element and fixel tables were always empty, even when there were elements configured.

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