[BUG] xsl:import fails from fn:transform for some relative paths

[adamretter]

If stylesheet a.xslt (stored at /db/test-xslt-import/a.xslt) contains <xsl:import href="b.xslt"/> fails to import b.xslt even when b.xslt is stored at /db/test-xslt-import/b.xslt.

Changing to the full path: <xsl:import href="xmldb:exist:///db/test-xslt-import/b.xslt"/> or <xsl:import href="exist:///db/test-xslt-import/b.xslt"/> works, but the relative path should also work.