$ git clone -n https://src.fedoraproject.org/rpms/libsolv.git /var/lib/mock/f40-build-772320-126390/root/chroot_tmpdir/scmroot/libsolv
Cloning into '/var/lib/mock/f40-build-772320-126390/root/chroot_tmpdir/scmroot/libsolv'...
$ git fetch origin af1537bbb175c32d86ff2a62e4dd34e4497740e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsolv
 * [new ref]         af1537bbb175c32d86ff2a62e4dd34e4497740e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af1537b Rebuilt for https://fedoraproject.org/wiki/Changes/Ruby_3.3