'Can not add property to parent of type object' when creating a project with numeric name

[cyberbiont]

Command

new

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

13

Description

When using ng new command to create a project, if project name consists of numbers only, like ng new 15 , I get an error on the stage after making a selection in 'Which stylesheet format would you like to use?' question (no matter what choice I have selected)

Minimal Reproduction

1 Run ng new 15
2 Select any answer to 'Which stylesheet format would you like to use?' question
3 Observe the error

Exception or Error

Can not add property to parent of type object

Your Environment

Angular CLI: 15.1.1
Node: 18.12.1
Package Manager: npm 9.2.0
OS: win32 x64

Anything else relevant?

No response

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