random id created may not be a valid xs:ID
db_1 | 20 Sep 2021 12:08:18,670 [qtp1020397237-42] ERROR (NativeValueIndex.java [convertToAtomic]:1035) - org.exist.xquery.XPathException: exerr:ERROR Type error: string 35c45493 is not a valid xs:ID
NOTE
xs:ID ist a document wide unique xs:NCNAME => MUST NOT start with digit, hyphen,period
Edited by Stefan Hynek