closql--coerce: Fix bug in Emacs 25 code-path

Or more precisely, actually add the omitted Emacs 25 code-path.
cb4c9e5 omitted the ELSE-case,
which we know wasn't done on purpose because then I would have
used `and' instead.

This caused `closql-insert' to fail.

CHANGELOG

@@ -1,5 +1,12 @@
 # -*- mode: org -*-
 
+* v0.5.2    UNRELEASED
+
+- Fixed a bug that caused ~closql-insert~ to fail when using Emacs 25
+  ever since Emacs 26 is supported too.
+
+- Added new utility function ~closql-format~.
+
 * v0.5.1    2017/12/19
 
 - A recent change on Emacs 27.0.50 causes an EmacSQL bug to surface.

closql.el

@@ -398,7 +398,8 @@
                         (vec (make-vector len -1)))
                    (dotimes (i len)
                      (aset vec i (aref object i)))
-                   vec))
+                   vec)
+               object)
              type))
 
 (cl-defmethod closql--abbrev-class ((class-tag symbol))