$ git clone -n https://src.fedoraproject.org/rpms/rust-rand_pcg0.2.git /var/lib/mock/f40-build-2039069-48236/root/chroot_tmpdir/scmroot/rust-rand_pcg0.2
Cloning into '/var/lib/mock/f40-build-2039069-48236/root/chroot_tmpdir/scmroot/rust-rand_pcg0.2'...
$ git fetch origin 2628b282cf81d280622178ef6729ec2e60b2e608:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rand_pcg0.2
 * [new ref]         2628b282cf81d280622178ef6729ec2e60b2e608 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2628b28 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild