$ git clone -n https://src.fedoraproject.org/rpms/rust-pbkdf2_0.10.git /var/lib/mock/f39-build-1506994-35219/root/chroot_tmpdir/scmroot/rust-pbkdf2_0.10
Cloning into '/var/lib/mock/f39-build-1506994-35219/root/chroot_tmpdir/scmroot/rust-pbkdf2_0.10'...
$ git fetch origin 4a669cf5c71e5bae0b4217fa735e4f2397d9f040:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pbkdf2_0.10
 * [new ref]         4a669cf5c71e5bae0b4217fa735e4f2397d9f040 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a669cf Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild