'multiple IDs with prefix' problem

Hi, could someone please explain what may be the cause of such error messages:

restic diff ca18 4717
repository 93ee05c0 opened (repository version 1) successfully, password is correct
Fatal: multiple IDs with prefix "ca18" found

restic diff ca18 2c2d
repository 93ee05c0 opened (repository version 1) successfully, password is correct
Fatal: multiple IDs with prefix "ca18" found

restic diff 4717 2c2d
repository 93ee05c0 opened (repository version 1) successfully, password is correct
Fatal: multiple IDs with prefix "4717" found

while it’s clear that there are no similar IDs in the list of snapshots:

restic snapshots
repository 93ee05c0 opened (repository version 1) successfully, password is correct
ID        Time                 Host        Tags        Paths
-------------------------------------------------------------------
025bf3dc  2021-07-25 20:00:01  name-pc     automated   /home/name
236f8285  2021-08-30 23:50:03  name-pc     automated   /home/name
ea1a38fd  2021-09-26 17:43:23  name-pc     automated   /home/name
7066bd47  2021-10-30 23:35:47  name-pc     automated   /home/name
a7a22858  2021-12-25 11:10:01  name-pc     automated   /home/name
7faee753  2022-01-31 00:34:31  name-pc     automated   /home/name
795f5fb2  2022-06-26 21:23:42  name-pc     automated   /home/name
498dba5e  2022-07-30 13:09:22  name-pc                 /home/name
50844afe  2022-08-14 13:42:06  name-pc                 /home/name
9150837e  2022-09-04 17:14:34  name-pc                 /home/name
84993207  2022-09-10 20:55:09  name-pc                 /home/name
7c24b66d  2022-09-17 12:30:36  name-pc                 /home/name
ddbd8c24  2022-09-17 20:18:00  name-pc                 /home/name
3df1ea88  2022-09-23 22:28:06  name-pc                 /home/name
0bce0d8d  2022-10-07 21:31:39  name-pc                 /home/name
eadb8169  2022-10-31 00:23:02  name-pc                 /home/name
98b90863  2022-11-04 18:49:08  name-pc                 /home/name
2d3768b0  2022-11-12 13:22:05  name-pc                 /home/name
47178ee9  2022-11-19 12:20:06  name-pc                 /home/name
ca18a956  2022-11-29 18:51:40  name-pc                 /home/name
2c2d860d  2022-12-08 00:35:31  name-pc                 /home/name
-------------------------------------------------------------------
21 snapshots

restic version
restic 0.14.0 compiled with go1.19 on linux/amd64

OS Linux Mint 20.1 Ulyssa

restic check
using temporary cache in /tmp/restic-check-cache-2086718521
repository 93ee05c0 opened (repository version 1) successfully, password is correct
created new cache in /tmp/restic-check-cache-2086718521
create exclusive lock for repository
load indexes
check all packs
check snapshots, trees and blobs
[0:56] 100.00%  21 / 21 snapshots
no errors were found

restic prune performed succesfully with no changes in the result

or maybe I should post this as a bug on github?

Which backend are you using? That looks a lot like Restore and forget snapshot stored on Artifactory via rclone WebDAV backend does not work · Issue #3936 · restic/restic · GitHub

thanks for your reply

the issue wasn’t related to the backend (no backend is used) but while browsing the github discussion it struck me that the problem was most probably related to the way restic finds its snapshot files simply by names

it was overlooked detail. i recently tried to store par2 files simply alongside the files of the repo - and this caused the issue above