Issue #1206442 by moonray: Notice: Undefined property: stdClass:: when using Webform within a Panel.

Issue #2143583: Some situations may result in 'Call to undefined function webform_component_parent_keys()' error.

Issue #2109639 by Samvel: Readonly attribute in selects not removing when using predefined select lists.

Issue #2019393 by torotil: Default/current value not saved in submission when a private field is hidden.

Issue #2068305 by issa.haddadin: Prev page button label/ Next page button label should be translatable.

Issue #1897978 by Liam Morland, quicksketch: Emailed %email_values() shows blank for text field when value is submitted as '0'.

Issue #1956336 by mr.york: Same data on every page when using Webform2PDF to download multiple submissions.

Issue #1601968 by sah62, quicksketch: Number step test modulo (fmod) has precision errors with odd float numbers.

Issue #1804858 by bxtaylor and pdrake: Fatal error: Allowed memory size exhausted in number.inc when calculating standard deviation.