$ git clone -n https://src.fedoraproject.org/rpms/rust-streebog0.9.git /var/lib/mock/f42-build-3234199-41196/root/chroot_tmpdir/scmroot/rust-streebog0.9
Cloning into '/var/lib/mock/f42-build-3234199-41196/root/chroot_tmpdir/scmroot/rust-streebog0.9'...
$ git fetch origin a2191a7a8cb2049835e2d3d26e51d0422222c32b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-streebog0.9
 * [new ref]         a2191a7a8cb2049835e2d3d26e51d0422222c32b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2191a7 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild