Warning 7.7.2.27. The converse of Proposition 7.7.2.26 is false in general: a weak colimit diagram in an $\infty $-category $\operatorname{\mathcal{C}}$ need not be a colimit diagram. For a counterexample, see Warning 7.7.2.9.
$\Newextarrow{\xhookrightarrow}{10,10}{0x21AA}$