$ git clone -n https://src.fedoraproject.org/rpms/screen.git /var/lib/mock/f39-build-1623748-38974/root/chroot_tmpdir/scmroot/screen
Cloning into '/var/lib/mock/f39-build-1623748-38974/root/chroot_tmpdir/scmroot/screen'...
$ git fetch origin b6a85b932c06d29b71bd5ed24bdb9176a1824822:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/screen
 * [new ref]         b6a85b932c06d29b71bd5ed24bdb9176a1824822 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b6a85b9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild