$ git clone -n https://src.fedoraproject.org/rpms/virtualbox-guest-additions.git /var/lib/mock/f31-build-109535-33939/root/chroot_tmpdir/scmroot/virtualbox-guest-additions
Cloning into '/var/lib/mock/f31-build-109535-33939/root/chroot_tmpdir/scmroot/virtualbox-guest-additions'...
$ git reset --hard 47263288e9671b5692483108b72dcea62da5c10d
HEAD is now at 4726328 Update Virtualbox Guest Additions to 6.0.12