Bug Fixes
- core: change the check File instance for SSR compatibility (#1865) (7883f1a), closes #1864
- core: clone initialModel during reset model (#1874) (e706cf8), closes #1872
- core: ensure array notation for key emit a valid model (#1859) (0b3ab37), closes #1857
- core: ensure the validation calls occurs only once during build (#1866) (770bea9), closes #1754
- core: support resolving non static fieldComponent query (#1878) (ac7e9a2), closes #1868
- core: toggle controls of the hidden fields before the visible ones (#1875) (d35460e), closes #1700
- ionic: add missing export of ionFormlyAttributes (#1880) (679ee10), closes #1879
- json-schema: use multi-select to handle anyOf schema (eb71a68)
- material: avoid using deprecated underlineRef (#1860) (807218f)
- material: support selectAll in multiselect with group (#1867) (f5625ea), closes #1852
- make FormlyModule ModuleWithProviders generic for ng9 support (#1854) (dbb860d)